He's not overrated when you consider his numbers are on par with or better all the most recent HoF modern era QB's that i already listed, and you factor in that they all had at least one HoF WR to throw to for the majority of their careers. Alot of them had more than one. McNabb had 20 games with Owens, and most of the rest of the entire decade he had crap. His 59 completion percentage is one percent less than Jim Kelly, Dan Fouts, etc.. and 1.5 percent less than Aikman.
His 7 yards per completion is .7 less than Fouts for their careers, and roughly equal with Troy who threw for 6.9 yards per completion for his career.. so that checkdown stuff really has little merit. I doubt most of you watched enough Eagles games to see the majority of passes that he threw, and the checkdown thing only comes into play because Westbrook was such a good receiving option out of the backfield, and most of the time he was one of the most talented WR's on the Eagles team, even as a RB.