Quote Originally Posted by Jiro View Post
Seymour on Mount Gagazet was the toughest boss for me, followed by Evrae. That being said, I actually haven't beat Seymour inside Sin yet, due to laziness/ I think my file was deleted.

Seymour on Gagazet was a bitch, so I spent a month or so just leveling around a save point until I got Bio for Lulu which helped quite considerably.
No doubt the hardest boss for me. I must've leveled 2 hours before him before I could actually beat him. However, while he was my hardest boss, he was no doubt my favorite in the game. That's when you know a true FF playa.