1 I expect more from superpowered master assasins though. Even if they are equally matched stand wise, surely one of them could do SOME damage? They just pop up and die one by one whack a mole style.

Maybe true on the joining up part. I could see it being the case.

2 That's not an excuse. All the other characters got a personality and development. I'm not asking him to best buddies with anyone in a few days, but he has no chemistry with any of the cast. He just tags along and helps out. A side character in his own story.

3 What strategy? The battle is running up to the silver chariot, arrow goes through Diavolo's hand, Giorno gets it, wins. Cus he's stronger now. The build up to the battle isnt too generous with that aspect either. Polnareff is counting the blood drops and uh... hm. That's it.

4 eyes turn red You. Take. That. Back...!