I'm not as high on Mitchell. His physicality will be matched pretty easily in the NBA, so he's going to lose an advantage he had in the NCAA.
I only watched like 3 of their games, so this is by no means a definitive take on Mitchell. The one thing I saw that really bothered me, was his body language and demeanor to his teammates.
Specifically in the finals, he had a pretty egregious turnover where he was a little out of control and he threw a bad pass in the vicinity of one of his teammates. The camera stayed on him as he motioned to his teammate that he should have been where Mitchell threw the ball, rather than where the player was standing.
I would prefer my team leaders to be able to accept responsibility for a mistake. I saw similar reactions from him in the one tight game they had in the tourney, can't remember the opponent. I remember thinking he had really bad body language towards his team and the officials during the game, particularly during a period where he was playing pretty poorly.
He's gonna have to get over that shit.
On his own team, I'd rather have Butler all day long.