I think that Kefka is the best villain ever...

He is not supposed to be charismatic, he is sopposed to be insane... And hiss clowny insanity was amazing. And what about his sadistic-sarcastic lines?

I guess that what makes me think that Kefka was so great is the fact that he's unique, there's no other like him... And he's there in the game, showing his insanity since act 1.

And he, unlike most villains, wasn't all powerful since the beggining... he surprised me when I first played through the game, and that was good.