While many of us trust Roger Ebert's opinions on movies, I'm not used to hearing his opinions on politics. This piece of his is more about manners than politics... definitely worth a read:

Guess who's not coming to dinner

"I do not like you, John McCain. My feeling has nothing to do with issues. It has to do with common courtesy. During the debate, you refused to look Barack Obama in the eye. Indeed, you refused to look at him at all. Even when the two of you shook hands at the start, you used your eyes only to locate his hand, and then gazed past him as you shook it...."