But really, both of them are well done. In terms of Villains though, ya don't get much of aback story out of Kefka, whereas Sephiroth has a whole history.
FF6 has the most playable characters of any of the games, but each one represents a different class which is why they are so unique. What I mean is in FFV you had 4 (five if counting Clara) playable characters that can change to many different jobs, the same can be said for FFIII.
I like both of them pretty well so I can't say one is better than the other












