first off to correct everyone that voted for kuja, you must first set rules ff7 or 9 battle style if your using 7 kuja cannot use trance but if you want trance kuja then you use ff9 style and that would mean spehiroth would also have a trance frm and on compair normal kuja to sephiroth seph would kick kujas ass, so if they both went trance then sephiroth would have a huge advantage and sephiroth has materia which would give him the ability to easily kill kuja just use reflect and there goes all of kujas spell then seph could just annilate kuja with physical attacks. plus kuja was beat by a bunch of two bit losers. and finally "killed"(i doubt that) by the lifa tree.well cloud "killed"(doubt that too) seph and everyone knows cloud is a much better hero the zidea or any of the ff9 characters.