LeBron, Kobe, and possibly Wade. Howard, only because at the moment he's the best, but he's obviously not a complete Center, lacking any real post-up game. To me these are the best value for the money players in the game,
No one else is currently playing at that level. They are good players in relative terms but are not, IMO, complete players.
To me a max money player is a top 5 player at a given position, and will continue to be so for two-three additional seasons. By that standard Bosh, Dirk, Derron and Paul all belong and so do most of the players on the list, including Carmello and Joe Johnson. I would say that they are top 5 players now at their positions, but none of them are complete players at those spots. Dirk doesn't rebound enough or play defense well enough. Bosh can't do it against bigger players. Neither Paul or Derron score enough to be elite. Nonetheless, all these players are by definition max money players because they put up better numbers than their peers.