I set everything up weeks ago actually, I just haven't actually played with anyone yet.
Do you have the TKG emulator though? (PPSSPP)
I pretty much played nearly every character at one time or another, at varying levels of competency of course. Kain and Prishe are the ones I played best, along with Firion, but I can offer opinions with most of the other characters too. Those three are just the ones I was better than anyone else, though Luna was about on par, if not superior, as a Prishe player.
Who exactly do you play? I don't even remember anymore
(Other than Firion)
Seraph Sephiroth is a huge idiot.