Not sure why so many votes for Brown after 3 games.
For me it's easy: Crowder
IMO he is the heart of that team, at least defensively, sort of like KG was in the Big Three era. Sure IT, Hortford, and Brown will fill up the stat sheets or highlight reels but like KG he is the backbone to what this team really is: hard nosed defense that never gives up and always give it everything.
Doesn't hurt that he also makes peanuts in this new salary structure for the next four years. He will probably be the best NBA contract in history by 2018/2019.