If you go by audience reaction, Gingrich did better than everybody else put together. Didn't he get a standing ovation at one point? They were leading into the commercial as it happened, but it looked like it was going that way.
Ron Paul will probably stay in the race as long as he has the money to keep going. But I don't think his support will get past the single digits except for maybe a handful of states.
I was kind of surprised at the way Romney stumbled over the question of releasing his taxes. You could even hear the mumblings from the audience. He's been in politics for a long time. I'm really surprised that he wasn't more prepared for that question. Having said that, I believe he did well on a few questions. Either way, he's increasing his lead in the polls, but that's probably because of Huntsman dropping out and endorsing Romney.