Don’t find any bosses to be THAT problematic for my bg, but terrax or hulkbuster probably the worst, though that’s likely because we don’t see them as often so have less experience against them
Tbh protect Apoc is pretty easy but Bulwark Apoc can be a nightmare, it’s pretty much bring G99 or lose an AB
Venom or imiw are toughest. I have havok so korg and domino are no pain and nick just needs a nullify champ coz fury gets nullifid and second life is easy life. Annihilus need cap or spider gwen. Mojo, dragon man and apoc are very easy coz mojo needs buff immune champ, apoc needs safe sp dodging and dragon man is the side quest boss so I have lot of experience. Doom might be pain without shock immune and incorrect sp dodging
All of these are annoying, but I once came up against a Venom boss, and ISTG I never hated this game as much before that moment....
Sasquatch, if you can't finish him one shot. Then the real pain starts
All of these are annoying, but I once came up against a Venom boss, and ISTG I never hated this game as much before that moment.... Is Venom actually that difficult? I just brought SymSupreme and obliterated him last time I saw him as a war boss.