I can't say as the guy's got a post that I consider a favorite. They all kick butt. Just start at his latest and work back from there. Actually, because of his brilliant use of the comic book images, that could easily be my favorite. (What were those guys on when they came up with Bizarro World?)
I deleted a couple more statists while I was messing with the blogroll, but I meant to add in Strike the Root and Antiwar.com. They'll probably be there when you read this, depending on how quick you are.