Originally posted by Garnet1999AD
Kefka's also the easiest final boss seen in the series. To borrow Dr Unne a bit, even a one-eyed Kraken (from FF1) who's equipped with a wet spaghetti could kill 20 Kefkas before he had to heal himself.
Where does it state that the toughness of a person is directly related to how good of a villain they are?

Spoilers ahead:

Sephy was tough, good looking, a fallen hero.... but the bottom line is that he was jenovas bitch. And he had no control over the minions you fight troughout the game. Example, Sephy does not command the weapons, they do what they please.

Kefka might not have been tough, but his brains gave him power (reminds me of Hamlet pretending to go nuts so that people will underestimate him) and at the end of the day he made godesses HIS bitch. He controls the fate of the world and desides to play with it at his whim, that makes him the greater villain.

Last note: If we go for toughness, I think that I took the longest to beat Zeromus in FFIV and the most dangerous last boss (ie closest to killing me) was NeoExDeath FFV. Chaos was ok, but I killed him quickly (he never used Cure 4). Kefka, Sephy and the last sorceress of FF8 are jokes compared to the old school bosses in terms of toughness. I've played through FF1,4-8.