KH, but I have never played Final Fantasy.
Versus could change EVERYTHING.
Wow Starcraft, u sure do have alot of faith in Versus even though we know nothing about it and haven't seen gameplay. I'm not saying it'll bomb, but ur anticipation for Versus is astounding. OT: The thing with this topic is that it depends on which game. There are some FF's that I didn't like, but some that I absolutely loved (4,6,7,10). I guess I would pick KH because I haven't been disappointed with none of their games and their storyline is pretty cool (although some parts I think they just added to it as they went along).
Edit: I was wondering how long it would take Soriku to come in this thread :-)