To me, Romney seemed more subdued and less fiery than in the first two. Liberals see that as weakness, just as they mistake aggression for strength. Case in point, they're convinced Biden won simply because he was an obnoxious ass, and yet on substance, he wasn't even in the same ballpark as Ryan.
In the end, it doesn't matter that we think our guy won and they think their Kenyan Marxist won. It matters what the independents and undecideds think. Being undecided at this late (or any) stage of the game, of course, means they're not the brightest Crayons in the box. So they'll need a lot of hand-holding. These are the same people who honestly thought "hope and change" from a guy named Hussein couldn't possibly go wrong. And yet, as noted above, they're polling toward Romney. So perhaps this won't be the end of America as we know it.