He exposed Pantera, but really, Pantera is like another Mayorga IMO. Pavlik had the perfect gameplan, and stuck to it. Back Pantera straight back, without giving him a chance to get his feet in place and set up, but even on the few occasions that he did get a clean hit, Pavlik took it like a Champ and kept coming forward.
That was the most surprising thing IMO, because I didn't expect Pavlik to be able to walk through his punches like that.