Brett Favre's retirement shocked us all Wednesday morning. Or maybe not. But it again sparked the debate -- who is the greatest quarterback in NFL history?
NFL.com editors Adam Rank, Andy Nesbitt, Frank Tadych, Jim Reineking and Justin Hathaway are back this week to solve that question over Instant Messenger in NFL.com's "Instant Debate," presented by Reebok.
|Adam Rank (1:17:03 PM): In talking championships, that conversation starts and ends with Otto Graham. The guy led his team to a title game seemingly every year he played.|