The argument about who's the greatest quarterback in the NFL is a constant and ever changing argument. When talking about past NFL quarterbacks, some would say Brett Favre, Joe Montana, Dan Marino, and Peyton Manning are among the best quarterbacks to ever play the game. In the discussion of quarterbacks still in the NFL, the most often pointed to as the best include Tom Brady, Aaron Rodgers, and Drew Brees. Most commonly, Joe Montana and Tom Brady are pointed to as the two best all time quarterbacks. However, the matter of who the best quarterback is is simply an opinion and anyone can have a different opinion as there is no general consensus. There is also no perfect way to decide on a single best QB.
When considering who is the best quarterback all time, most people consider both athletic ability and legacy. Legacy includes the success the quarterback has had in the NFL.
Many people use the acronym goat or G.O.A.T. for "Greatest of All Time".
Many point to Bill Belichick, who is often considered the greatest coach of all time. Without Belichick, would Brady have had the same success?
Joe Montana is another popular choice for the greatest quarterback of all time. He is 4-0 all-time in super bowls. Montana spent most of his career playing for San Francisco. He also played two years for Kansas City.
Many people disagree about what defines an impressive superbowl record. Is it better to be undefeated in the Superbowl, or have lost in the Superbowl but won the most rings? Brady's 6-3 Super Bowl record isn't as clean as Montana's 4-0 superbowl record, but that's only because Tom Brady managed to make it into more Super Bowls.