Spurs don't think Big Baby is worth the MLE. They offered the MLE to McDyess. http://www.mysanantonio.com/sports/spurs/Spurs_make_push_for_McDyess.html
it's only 2 and then partial but i'd rather have big Baby if they're gonna spend that kinda money. At least he's young and can develop...cause obviously neither guy is gonna be playing 35 mpg
McDyess is the better defender and has just as good of an outside shot, if not better, than Davis. Plus he's obviously more experienced, and I'm sure that counts a lot for the Spurs.
this counts huge Duncan is not getting any younger, same with ginobili once both of those guys go the spurs will change who they are and rebuild around parker. but while that window is there McDyess will give you better returns than Davis will over the next two years