Mark my words, two things will happen that will shock millions of people:
1) Bynum will surpass D12 as the premiere big in the game in 1-2 years. My main man Sessions wil turn him into a monster.
2) Bynum will have the longer more productive career. His idol is Duncan. As much as I playfully talk about him, Duncan has had a long productive career rebounding, swatting, and scoring when needed throughout his career. Give me a player like that, who will anchor my defense for at least a decade. Premiere athleticism not needed.
I expect Bynum to play another 10-12 years easily. He's developing a nice jumper to compliment his post game (even a 3ptr!

). He can hit his FTs. He can rebound, swat, score and is handling double teams better.
He's doing all this in front of Jack, Denzel, etc., on the biggest stage. D12 is afraid to fail that's why he'll never win.