Under the current system, about the only reason to take a command Omega is the initiative boost. That can come in handy when lining up boresights on ships like the Omega itself. The Poseidon will give you a slightly better boost (Command 3 vs. Command 2) but is next to useless otherwise thanks to the overall ineffectiveness of fighters.
Subject to change when Armegeddon is officially released (and not just in PDF format for tournament goers...) of course, but at the moment that's about the best reason I can come up with.
The Warlock as per SFoS is grossly, overwhelmingly, obviously superior to the Command Omega. There is no sane reason to take a Command Omega in preference to a Warlock. Only a lunatic would contemplate it...
...which is, I suppose, why Alien is asking this question. :wink:
But after Armagedon, We will have 3 eras to play B5 and IF! I'm right, only in the armagedon era the Warlock is Armagedon level, in the other two continue with the pl war. And at War level the warlock is better.
One thing I beleve is a mistake, In Armagedon, Why the Warlock is Armagedon pl if I cound use a Nemesis? :roll: