Arsenal was the making of the Behemoth that is Adebayor, so he wasn't such a big problem till he was sold and was just chuffed to be sharing a field with a legend like Henry.
RvP had a quick temper and a high opinion of himself as most Dutch players of his ilk do. However, coming to a big club and spending several years watching his teams games from a tv screen in a medics bed gave him time to subdue his temper as it would any player.
Anelka was as quiet as a mouse and hardly spoke a word of English. He wasn't any actual trouble at all apart from the fact he soon wanted out.
I don't think Wenger has had anything like the character of Balotelli to deal with in all his years. It was one of my main concerns about his pursuit of Suarez. Wenger can play Good cop and Silent cop.You might argue Bould or Aker's can play Bad cop but Balotteli barely knew who Wilshere was when he came here.....I doubt he has any deference or care for Bould.
I suspect that Wenger would be fantastic for Balotelli's career but he would not be as so for Arsenal's.