I think the difference is in his manner. He somehow manages to avoid coming off like a nasty trickster when he goes up against her, whereas she often looks pretty craven. There may be an element of media-related sexism in there, depending on how it's being framed in the news, but in general he just always comes off cool as a cucumber as opposed to her having little fits. Since I would prefer him to win, I hope he can keep that up.

Also there's the fact that his "attacks" have been on actual issues and haven't brought up any of her personal baggage. My fear is that if she keeps pushing the Rezko thing, we're going to see a lot of Clinton 1.0 garbage coming up again, which I would find disappointing but, you know, kinda only fair. Seriously, every time she mentions Rezko, I'm aghast that she has the balls to bring up shady land deals.