1.Diablo - Hard on normal- but I could tank him on nightmare and hell with my druid
2.Mephisto - I always seem to die
3.Duriel - Never thought he was too hard.
4.Andariel - Argh Poison.
5.Baal - An absolute cop-out, damn he's easy.
Shenanigans! You "never" thought Duriel was hard? I doubt that.