You're not supposed to take Kefka "seriously," but yes, he's overrated. One sign is that a big point on supporters of Kefka as "best villain" is that he "actually succeeded in destroying the world." First of all, that's an incredibly shallow reason to rank him best, so excuse me if I don't pay it any mind. Secondly his "destruction" of the world leaves nearly all the towns you can visit beforehand relatively intact. Rumors of the world's end are greatly exaggerated. I like Kefka, but he's overrated. He gets more points for personality than destroying the world either way.