I'll fourth the emerging consensus that tonight was basically a split decision, with Cheney getting the slight nod mostly because he's much more credible on reminding me of my Dad. Both landed blows, both evaded questions annoyingly, both would blurt out their two or three topically unrelated talking points (His record's not credible! There he goes again confusing Saddam-I-mean-Obama with Zamfir!) at will. I bailed as soon as the foreign policy segment ended.
My one exceedingly minor observation was that it was discombobulating to watch this congenitally sunny-side-up pretty boy try his left-handed best to prove that we're all Screwed, while the cranky old man with acid reflux barked out the Case for Optimism. Weird.