I have found that FactCheck.org takes on both Kerry and Bush pretty much equally. I think it is a good source for what is the truth concerning cadidates claims. I just went there and there is 3 stories supporting Kerry and 3 stories supporting President Bush. It seems to be pretty even handed, not always correct, but usually.
If you want to run with the big dogs, you need to do more than count the number of "pro" and "con" stories, and draw a conclusion on that basis. Anneneberg Factcheck contorts facts, and that is easy to prove by looking at readily available source documents.