There have been a few posts recently concerning QB's who are considered "over-rated".
Let's use another term to replace the over-rated/under-rated discussion; one which is supremely important in all of our lives and one which we can relate to;
Which QB is OVERPAID?
Which teams get bang for their buck at the QB position?
Patriots (and Brady - 3 rings); pretty good value
Steelers (and Big Ben - 2 rings); again seems a good deal
Colts (and Peyton - 1 ring/1 other bowl); not too shabby
How about Oakland?
Is $10 million/year good value for Jamarcus Russell? Are they getting good value for their quarterback dollar? They sure are paying 'top money' at that position?
By this benchmark - you would have to say that Russell is the most over-rated (or under achieving) QB in the league.