Jermaine. For all the talk about his crappy defense, he's better than Brad Miller. And with Kwame, it's just too much of a talent disparity. As others have pointed out, Jermaine could flourish playing with our starting 4, especially when you think of all the easy dunks and layups that Baby and Perk often botch and that even Rasheed sometimes did because of his physical condition. Putting him on the court with the starting 4 makes him incredibly dangerous and makes us nearly impossible to defend.
And when he's on the floor with bench players, he's a much stronger scoring option than most teams have coming off the bench.