Ripple said:
To give the G'Quan it's due, it can also sit and all stop and pivot, but the weaker and less numerous arcs on its beams means it does the job poorly for it's PL.
All Stop and Pivot doesn't help much really - it only doubles your existing turn, giving you a 90 degree turn. So, if you have a White Star who has got directly behind you at more than 8" (exceedingly easy for a WS to do!) , you have to:
1. All Stop
2. All Stop and Pivot - to turn 90 degrees
3. All Stop and Pivot - to turn the extra 90 degrees to face behind you
So, that's three turns required to face the enemy (e.g. the proverbial White Star in the ar$€

) and boresight it with the only weapon you could possibly bring to bear, and that all rather assumes it hasn't already moved away in the direction of the G'Quans first turn which of course it would have! And even if it didn't, the G'Quan would need the initiative sinks to get the boresight in.
The Omega, by contrast, with it's 4AD B(a) beam has no problems whatsoever assuming it gets to move after the WS because its two beams give it effectively 360 coverage.
Of course, I'm sure some would argue that the G'Quan requires more support on the flanks and rear than an Omega. If the G'Quan had a much better beam (say 8AD - note this is *not* a change I'm advocating), I could see that argument, as the G'Quan would be sacrificing all round firepower for frontal firepower and *still* have 2AD less beamy goodness than an Omega.
However, as it stands, the Omega is better armed from the front, massively better equipped in the rear, and considering they are the same PL is a vastly superior ship to the G'Quan (again in my opinion - your mileage may vary!).
Regards,
Dave