A few QBs in the last 15 years worth nothing:
Dan Marino
John Elway
Brett Favre
Steve Young
Jim Kelly
Troy Aikman
Kurt Warner
Peyton Manning
Donavan McNabb
Warren Moon
I would take any of those QBs in their prime over Brady. Easily.
(And Brady doesn't even make my top 25 QBs of all-time.)
IMO using Super Bowl rings as the measuring stick for being the "best" QB is ludicrous. You would exclude some of the greatest QBs in NFL history.