Smart would play well wherever he was, he is that sort of 100% player. That given Stevens has done an enormous job to get the most out of him and he has brought him along at a good pace. He will keep improving and his ceiling is difficult to predict.
Coach has done a great job with every player, that is supported by stats and what you see when watching the team.
Don't usually play favourites but I like what AB is doing. Still young and improving, may never be as big a name as others, but too often underrated and often a difference maker.