I know Sephiroth wasnt hard. I defeated him the on the first try on when i got FF7 for the first time. I almost lost to him in his One winged angel form on the first try. but i came through.\
I'm saying that he is the best boss fight in all Final Fantasy games. even Kingdom hearts and Kingdom hearts 2 he was a great boss fight.
http://i11.tinypic.com/4r2c21v.jpg