Since we are coming up for a new book I thought i would write about our groups observations, we are a large group with 10+ ACTA gamers and have run recently a 2nd ed campaign and a large long running tournament, i'll cover everything we have noticed and talked about, first race issues then general stuff, note that we between us own nearly all the fleets, so they have been played with not just idle speculation 
Abbai
We have two abbai players currently, myself and one other in general the abbai as a solo race have a number of issues we both agree on:
Bimith is currently too slow, too short ranged and is better replaced by 2x Milani in every way, I just can't currently justify this hull over two Milani, or even taking two of these over a Lakara!, We are optimistic that the manouverabilty fix coming will help matters, but it still lacks somthing since its terrible range means even bog standard ships tend to out range it.
3rd Age Earth Alliance
I find myself wondering what exactly this fleet is meant to do, it doesn't seem to excel at anything and some of the Hulls struggle to find a use, example:
Nova, Lots of dice thrown, but as yet ive had issues getting it in range against most opponents, since it is move 6 most fleets with any degree of manoeuvrability seem to out run it, I think thats my only grumble, but in 6 games used I struggle to think of any time they have matched a Hyperion's damage.
Omegas, while a good solid hull suffers against races which ignore interceptors, I think that they are overvalued on this hull, since they are worthless against minbari and a growing number of e-mine and beam heavy races, not to mention fighters strip them down fast. This means against some races its prehaps more fragile than it would normally be as a battle level vessel. Also once in brawl range, its firepower is somewhat lacking. For a broadside fleet it strikes me that the omegas broadsides don't seem all that good, the beam is great, but once ships close this lumbering vessel is worse off firepower wise than a nova, I typically get two to three shots off with the beam and then wish i had taken two hyperions instead, since i typically get more shots off due to increased turns with the beams, and secondarys tend to do well.
All in all, 3rd age work, but seem to need a carefully designed fleet more than Crusade era or early. One thing that seems awkward about the fleet is its seeming dependence on boresight beams. If earth are a Broadside fleet why is most of the firepower on the front? Lumbering on hulls that have low movement and boresight firepower restricts the tactics availble, and makes them very prone to fast manoeuvrable fleets.
Narn
Lately our narn player has been leaving the "Classic Ships" behind, and has had good success with Var'nics G'vrans and support with Dag'kars and the odd G'quan. He never uses t'loths anymore.
For a flying brick force he seems to do well with a fast moving force.
Hes made a good fleet, but we agree that it just doesn't feel like narn should play like it.
Minbari
Victims of the two most luck varible rules in the game, Beams and Stealth. On a good day he takes hardly any damage, and beams shread everything, on a bad day, everything sees him and beams bounce off everything.
ISA
We all pretty much agree, the white star has too many good points, it is:
Tougher than most raid ships
Fast and more manoverable than all raid ships.
Has great secondaries
A good ranged beam
carries a good flight, or has scout on an effective combat hull
Has no downsides aside from a weakness to fighters (which is get roundable) and E-mines(which not every fleet has)
What is its weak point,why take anything else in the fleet?
Seriously?!
We think that the current PAP changes are a bit fiddly, to be honest the best Idea so far is the shortening of ranges, (I think 12" for beam and 8" for pulsars is about the right balance) means at least it can't attack without at least taking some fire in return!
Bluestars are fine, except in campaigns. Some missions are just not set up for this kind of ship, we had a number of games where they just could not lose, Fine at higher levels, but if you've ever seen 5 BS vs 3 hermes... well yeah
Drahk, AMU AMU AMU..... As a drahk player I welcome the changes, it really was a bit over the top hehe.
Shadows, Again suffer from Beam Freak syndrome, and well the fighter issues really needed addressing, but the new changes seem spot on.
Vorlons, Need a Raid choice, and a bit of variety, nothing particularly wrong with them, but they are the same ship each time just a bit bigger each time.
General
Beams, Okay, I feel they should be capped, with say 3 re-rolls max, I've seen far too many games swung by supposedly freak dice rolls. The do ruin games in one fell swoop and again discourage big ships.
Stealth, Much better than 1st edition but still a potential game wrecker, with a couple of games simply down to one players inability to roll highish or or the other way around, club concensus is that it should be per weapon system, to round out a bit of freak luck.
Campaigns, Some missions are un-winable by one side with some races, however you don't tend to run into these issues until you try the mission. Also the randomness of the level and size of games means that big hulls are a liablity which is a shame, and awkward for certain races with few large games being played (I think our poor Shadow player only got to use a crab once in 5 turns of campaign, and that because EVERYONE -3 to the level roll and he was unlucky with the points on most game.
Crits
If the ships were balanced so that a battle say was better than two raid, then the crit vulnerability issue would be worth it. However currently I feel that smaller ships should somehow be weaker when attacking larger ships, at least in the crit results issues. To go back to a previous example, the omega feels worse than two hyperions, less beam, less hits, way less manoverbity and more vunrable to crits. I wont mention two omegas versus a warlock
Anyway, we are still playing and still enjoying the game and for the most part we are happy, but these bit stick out, and the randomness of certain event can ruin a game and instantly lose a game for you without anything you could do.
Anyway im tired and its time for my bed, Theres some more ideas in my head, i'll try and post those tommorow.

Abbai
We have two abbai players currently, myself and one other in general the abbai as a solo race have a number of issues we both agree on:
Bimith is currently too slow, too short ranged and is better replaced by 2x Milani in every way, I just can't currently justify this hull over two Milani, or even taking two of these over a Lakara!, We are optimistic that the manouverabilty fix coming will help matters, but it still lacks somthing since its terrible range means even bog standard ships tend to out range it.
3rd Age Earth Alliance
I find myself wondering what exactly this fleet is meant to do, it doesn't seem to excel at anything and some of the Hulls struggle to find a use, example:
Nova, Lots of dice thrown, but as yet ive had issues getting it in range against most opponents, since it is move 6 most fleets with any degree of manoeuvrability seem to out run it, I think thats my only grumble, but in 6 games used I struggle to think of any time they have matched a Hyperion's damage.
Omegas, while a good solid hull suffers against races which ignore interceptors, I think that they are overvalued on this hull, since they are worthless against minbari and a growing number of e-mine and beam heavy races, not to mention fighters strip them down fast. This means against some races its prehaps more fragile than it would normally be as a battle level vessel. Also once in brawl range, its firepower is somewhat lacking. For a broadside fleet it strikes me that the omegas broadsides don't seem all that good, the beam is great, but once ships close this lumbering vessel is worse off firepower wise than a nova, I typically get two to three shots off with the beam and then wish i had taken two hyperions instead, since i typically get more shots off due to increased turns with the beams, and secondarys tend to do well.
All in all, 3rd age work, but seem to need a carefully designed fleet more than Crusade era or early. One thing that seems awkward about the fleet is its seeming dependence on boresight beams. If earth are a Broadside fleet why is most of the firepower on the front? Lumbering on hulls that have low movement and boresight firepower restricts the tactics availble, and makes them very prone to fast manoeuvrable fleets.
Narn
Lately our narn player has been leaving the "Classic Ships" behind, and has had good success with Var'nics G'vrans and support with Dag'kars and the odd G'quan. He never uses t'loths anymore.
For a flying brick force he seems to do well with a fast moving force.
Hes made a good fleet, but we agree that it just doesn't feel like narn should play like it.
Minbari
Victims of the two most luck varible rules in the game, Beams and Stealth. On a good day he takes hardly any damage, and beams shread everything, on a bad day, everything sees him and beams bounce off everything.
ISA
We all pretty much agree, the white star has too many good points, it is:
Tougher than most raid ships
Fast and more manoverable than all raid ships.
Has great secondaries
A good ranged beam
carries a good flight, or has scout on an effective combat hull
Has no downsides aside from a weakness to fighters (which is get roundable) and E-mines(which not every fleet has)
What is its weak point,why take anything else in the fleet?
Seriously?!

We think that the current PAP changes are a bit fiddly, to be honest the best Idea so far is the shortening of ranges, (I think 12" for beam and 8" for pulsars is about the right balance) means at least it can't attack without at least taking some fire in return!
Bluestars are fine, except in campaigns. Some missions are just not set up for this kind of ship, we had a number of games where they just could not lose, Fine at higher levels, but if you've ever seen 5 BS vs 3 hermes... well yeah

Drahk, AMU AMU AMU..... As a drahk player I welcome the changes, it really was a bit over the top hehe.
Shadows, Again suffer from Beam Freak syndrome, and well the fighter issues really needed addressing, but the new changes seem spot on.
Vorlons, Need a Raid choice, and a bit of variety, nothing particularly wrong with them, but they are the same ship each time just a bit bigger each time.
General
Beams, Okay, I feel they should be capped, with say 3 re-rolls max, I've seen far too many games swung by supposedly freak dice rolls. The do ruin games in one fell swoop and again discourage big ships.
Stealth, Much better than 1st edition but still a potential game wrecker, with a couple of games simply down to one players inability to roll highish or or the other way around, club concensus is that it should be per weapon system, to round out a bit of freak luck.
Campaigns, Some missions are un-winable by one side with some races, however you don't tend to run into these issues until you try the mission. Also the randomness of the level and size of games means that big hulls are a liablity which is a shame, and awkward for certain races with few large games being played (I think our poor Shadow player only got to use a crab once in 5 turns of campaign, and that because EVERYONE -3 to the level roll and he was unlucky with the points on most game.
Crits
If the ships were balanced so that a battle say was better than two raid, then the crit vulnerability issue would be worth it. However currently I feel that smaller ships should somehow be weaker when attacking larger ships, at least in the crit results issues. To go back to a previous example, the omega feels worse than two hyperions, less beam, less hits, way less manoverbity and more vunrable to crits. I wont mention two omegas versus a warlock

Anyway, we are still playing and still enjoying the game and for the most part we are happy, but these bit stick out, and the randomness of certain event can ruin a game and instantly lose a game for you without anything you could do.
Anyway im tired and its time for my bed, Theres some more ideas in my head, i'll try and post those tommorow.