I think who ever comes out of the West will give the Heat problems if they advance. All the west has to do is put Shaq in pick-n-roll situations all game long. Sure he will dominate the offensive end but the defensive end will be a big problem. He doesn't have to guard anyone in the Detroit series. If the west is able to play up tempo the Heat will get killed.
I agree that Shaq would have a tough time guarding the pick-and-roll. He always has. Still ... no one on either Phoenix or Dallas can guard Wade. There are advantages for both sides, but I do agree that the two Western teams are stronger.