Out of these five main villains, who do you think is the king-of-the-hill?

Kefka was just F'n insane. Kuja, Sin, and Sephiroth would be worthy opponesnt as well, but I think Kefka would come out on top.

Ultimecia...for God's sake, if ya can't pass 2nd grade spelling, you don't deserve to be an FF final boss, let alone in competition with these other 4 awesome villains.

I haven't progresses that far into VI, but I've ehard from a friend that Kefka is a total badass. And my friend is an extremely reliable source on this matter... VI is his favorite. My vote goes to the one who came closest to destroying the freaking world. And he was friggin crazy... I like that. Gives him more character than the rest.

I am hurt that the Kadaj/Loz/Yazoo trio isnt on the list. xD

ZOMG! no Vegnagun! u guise jusd rnt 7331 nuff.....jk

I havent played 6 so cant really say Kefka.
I have to say Sephiroth then cause compared to the other ones, he has the most personality

Sin is HUGE--and if you don't know how to 'properly' defeat it, then it's almost impossible to kill.

Damn...I voted before thinking about it...lykoleon was right. Sin will dominate all. if he's defeated, then he'll just come back, mabe even stronger.

Sin was hard to beat because nobody was innovative enough to find a new way. They were stuck in the Final Summoning crap that was fabricated to make it come back everytime. Seriously, Tidus is not that bright at all, and if he can do it, someone else should have been able to do it first. Sin's power over Spira was due to stubborness, tradition and stupidity.