Brett Favre is a believer. While the topic of the best quarterback of all time varies based on who you ask, the three-time NFL MVP has given his vote of support to New England Patriots signal-caller Tom Brady. And in Favre’s rankings, Brady has dethroned a legend in Joe Montana. Speaking on the “Rich Eisen Show,” Favre gave his reason for such a decision, as well as his rationale for what makes Brady great. “I was not surprised by anything — now or in the future — that Tom does,” Favre said to Eisen. “I never thought I’d say that somebody was better than Joe Montana, but Joe Montana’s always been the best quarterback