I think it was more a tie.
Both McCain and Obama came out strong. Each one kinda fudged some facts, but each was able to state their positions clearly.
I think that McCain was a bit more nasty but it was a debate after all.
I think that Obama spent too much time talking about the past and not the future.
I thought some of the questions about the current economic issue were a bit unfair as Obama clearly stated that neither of them has seen the final draft because there is no one single final draft. It is still being worked on.
But overall, I don't think either candidate messed up or especially shined.
It was a good first debate. I think it was a tie.
Now that both sides have shot their main political loads, let's see what they will talk about in the next debate. The second debate may give more information than the first.
Of course the VP debate will be popular just for the entertainment value. I imagine more people will watch that train wreck than watched this debate.