Two was much harder, he actually tried in that one. I beat him first try in the first game and in the second it took me quite a few more (a lot more) I kept trying to kill him at too low a level and then when I was actually really high up, I wasn't able to block with triangle and he killed me(only needed two more hits). When I first tried I wasn't even able to hit Sephiroth before he killed me. Sephiroth in two was harder it brings to question if he will be in three and how they could make him any harder...