Well, I watched last night, and I saw Biden provided substantive answers. Palin provided an energetic presentation of scripted talking points and Bush slogans. She blantantly refused to answer questions for which she had not been prepped. She was completely thrown by the last question about what her shortcomings might be. Biden answered it with grace and humor, which led to his most effective and human moment of the night.
Palin did not make any huge mistakes like her previous interviews. But she never rose above the level of discourse you might get from a used car salesman (Can I callya Joe?). One trying to move a real clunker off the lot.