Gingrich
Paul
Romney
Santorum
^^^^^^
This. Newt did great since he's not the center of attention anymore. Paul had a solid debate as well; he had several good applause lines. Romney was mediocre but fairly solid throughout. Santorum faced a lot of harsh attacks and, while I admire the way he attempted to explain how the earmark process actually works, that doesn't win with the voter's against Mitt's vague platitudes.
The best exchange of the debate was the earmark bit; I was laughing out loud when Santorum and Romney were both trying to stutter over each other and OUT OF KNOWHERE Newt just explains everything, and then Santorum brings Ron Paul in too just to get a four-way debate going on.
I loved the chairs, too, that was amusing. A great finale to this debate season; I only wish we still had another few coming (hosted by CNN, of course, theirs har been the best by far.)