J.R. Smith, New York Knicks
While some may question is off-the-court antics, J.R. Smith is the reigning Sixth Man of the Year, and while he might not win again in 2013-14, he is clearly a strong candidate.
Smith averaged the most of all players coming off the bench with 18.1 points on 42.2 percent shooting from the field. Though he does not necessarily represent offensive efficiency, Smith is one of the best offensive dynamos in the game. He instantly adds scoring and is perfect for a situation in which the Knicks either want to cement a lead or mount a comeback.