The best post-debate analysis of Sarah Palin and Joe Biden that I've read, surprisingly, comes from film critic Roger Ebert! He reviews the vice-presidential debate as theater, and he's brilliant. Read more here.
Also, when he makes reference to Fargo, it reminds me of this Palin-Fargo mash-up:
By the way, the moment that Ebert mentions in which Biden chokes up and Palin ignores him is actually here in full. (The link that Ebert provides cuts it a bit short.)