No knockouts.
Mitt just stood his ground and looked and sounded Presidential.
Obama was fine. Fine was not at all good enough.
Update: I think this gets it about right:
If you knew nothing about Barack Obama and Mitt Romney except what you saw in their final debate, you would have assumed that Romney was the incumbent president, that Obama was the challenger trying to unseat him, that Romney was clearly leading in the polls going in and that he remained there going out. You wouldn’t necessarily think Romney won the debate, but you would think he was winning the race. Yuval Levin, the corner
Jay Currie 
Both sucked.