It’s one of the oldest barstool debates known to sports fans: who’s the greatest quarterback of all time? With all the different players and styles of play throughout NFL history, how exactly are you supposed to measure that? Do you give it to the guy with the best stats? The guy with the most wins? Or the guy with the most Super Bowl rings? Is it Elway? Is it Montana? Is it Brady? With so many all-time greats to choose from, making this list wasn’t easy. Without further delay, here’s our ranking of the 12 Greatest Quarterbacks in NFL History! Click the Next button below to get started!