I thought McCain was flustered in several moments, either in explaining his position or pointing fingers at Obama. (McCain had a lot of his "facts" about Obama debunked.)
I felt that Obama gave cooperation in the sense of both candidates recognizing a problem, but having "radically different" ways to fix them. I'm waiting for the "I agree with John, John's right about" soundbyte to be cut into an ad even though it wouldn't be used in context.
I don't think Obama was the aggressor, but I also don't think he sat back and defended all night. You can be the aggressor and still not land anything significant. McCain appeared to be old and angry while Obama was cool and collected.
Also, I felt the bailout questions were completely stupid. "Please have an opinion on something not finalized or revised since you've come back to Mississippi and will you support it?"