Dwight vs Bynum

Dwight Howard is obviously the more athletic and more accomplished player than Andrew Bynum. But Bynum showed signed last season he can potentially be a franchise Big Man, maybe even the best low post player in the game. Dwight is a defensive dynamo and is a game changer on the defensive end. Dwight is probably the fastest center along with being the most athletic in the game today. However Bynum is bigger, a little stronger, and is more polished on the offensive end. I also think he has more of a mean streak than Dwight, probably a little tougher mentally than Dwight.
Who would you take?