At one time, I thought he played quite out of control. Talented but didn't know what he was doing. He's improved steadily, to the point where I don't expect particularly bad things to happen when he handles the ball (and I expect some impressive scoring plays). So yeah, he's improved a lot and still is. His passing has improved this year, pretty clearly. 
Coming into this season, I didn't think he could be a very viable starter due to being something of a ball-stopper. This year, though, he seems to fit into offensive flow better and I could see him as a starter. I think he'd be a better starter than Webster, though Outlaw can actually be an asset off the bench, whereas I'm not sure Webster can be. I don't really see where Webster fits in when he gets back. I'd rather Batum or Outlaw start, with the other coming off the bench (Outlaw brings scoring, Batum brings a defensive stopper).
Well, there are a number of subjective aspects to basketball analysis. Defense, court vision, decision-making. Hard to get around that. I can understand it being a frustrating thing in that a person can throw it out and there's really no way to prove it or disprove it. Honestly, I don't have it in for anyone on the team. I may be wrong in any of my evaluations, but they're based on what I see.