Well, I mean, I think Kuja's a cool villain on his own, but for different reasons. I just always picture Kefka as the "best" one since he actually achieved his goals in the end and became god. Kuja fell short a bit there, considering the fact that his whole purpose was to prove that he wasn't just another copy. Final Fantasy IX is actually probably my favorite out of the series. Kefka just always seemed to be more on top of things when it came to his plans compared to the other villains. lol