Of all the arguments, I think the "2010 vs 2008" argument is the best. 2010 was a suicide mission for Dems, and things haven't gotten any better - in fact, as bad as O was the first two years, he was worse the last two. His disasters became too numerous for his massive propaganda arm to hide.
What's really sweet is not only did Obama show himself to be the small and bitter man that most of us knew he was, but that Romney turned out to be everything Obama wasn't. He outmaneuvered O at every turn. The Adult in the Room rose up and will show America what it means to be an American President.