Why Davide Foster Wallace isn't Proust, at Black Garterbelt. It's Dan Leo at newcritics who really hits it out of the park:

If David Foster Wallace, another author infamous for his verbosity, is (to me!) like a smart guy who sits next to you on the plane to Europe who at first seems really witty and brilliant but after an hour or two you just wish he would put a lid on it for a while and let you read your Richard Stark thriller, Proust is the guy who might shyly start to talk to you, asking questions about yourself and your family and job, what books and movies and music you like, and then he’ll start talking about anything at all and he’s so brilliant that you don’t want him to stop talking, even though he’ll keep saying, “Oh, but I should shut up, I’m boring you, you talk for a bit!”