I can't say enough about the Los Angeles Chargers' trusty QB-TE duo. It seems Philip Rivers and Antonio Gates have been at this forever. The 36-year-old tight end, who will enter his 15th season this fall, is still Rivers' go-to target and the veteran QB is consistently one of the most passionate players on the field -- trash talk and all. If you add up the number offseasons the other two quarterbacks on this list have played, it still doesn't equal Rivers' 13-year total. I believe Andrew Luck, who ranks 12th among quarterbacks in my top 100, will get back to that dominant, franchise player for the Colts if he can stay injury free. Cousins still hasn't gotten over the hump. The Redskins have put a lot of cars in his garage, but I see him walking too often. Cousins has to take advantage of the players at his disposal to establish himself as one of the league's top signal callers.