My list is short:
Howard, Griffin, Gasol, and Bosh.
Injuries and age knock a bunch of others out. Al Horford is a nice player, but he doesn't change the game enough on either end to be worth the max.
I think the max (or near max) gets thrown around too much. Thats how you get Antoine Walker, Kenyon Martin, Raef Lafrentz, Al Jefferson, Andrei Kirilenko albatrosses on your payroll.