Really? After playing, I made the opposite experience. Chansey walls damn near everything and gives great support, latias is similar though it fears stabbed pursuits, AV Slowbro and AV Tangrowth always get 3HKOed at most, meaning that they're usually back at ~70-80 % after switching out.... and even most megas are rather bulky and can be switched in repeatedly while not hitting THAT hard.
Anyway, I'm totally in love with AV right now, did anyone try out AV-hitmonchan? I currently run a set like this:
Hitmonchan @ Assault Vest
Ability: Iron Fist
EVs: 252 HP / 252 Def / 4 Atk
Impish Nature
- Drain Punch
- Rapid Spin
- Ice Punch
- Mach Punch
At least in theory, he can offer support with rapid spin, while drain punch allows him to regenerate health and mach punch is one of the best priority moves.
However, in practice, while he can take hits quite well and drain punch works as it should, he can't get past ghosts - even Ice Punch deals only ~1/3 to gourgeist -, so he struggles to perform his role as a spinner. Though Mach Punch is really quite helpful on some occasions, I'm still undecided whether Hitmonchan might be able to work if used correctly, or if it's unredeemably flawed.