I still say Sephiroth is the badest bad guy of the series because...
1: He distroyed Cloud's hometown
2: He nearly killed Tifa and Zack
3: He killed Aeris
4: He used the Black Materia to sumon the 4 WEPONDS and meteor
So, what you're tryign to say is Sephiroth destroyed a whole town,
almost killed two teens, killed a flower girl, and used black materia? So, Sephiroth merely destroyed a town and its inhabitants and a flower girl. Is that what you're trying to say? lol, that's nothing compared to Kefka.
Beware: FF6 Spoilers will follow.
Kekfa hands-down is a more evil person than Sephiroth.
1. He poisoned a river which is the source of water for a whole town simply to get rid of resistance.
2. He remained loyal to NO ONE and killed everyone once their part in his plans were realized.
3. He
succeeeded in destorying, something Sephiroth failed miserably.
I'm sure there are more examples of Kefka's evilness, but it's simply been too long since I've played the game, so I don't remember...