Most regard quarterback as the most important position in sports. But how do we judge a quarterback? Is it by production or winning games? That’s a good debate for another time. For now, let’s take a look at the list of QBs who have tossed the most touchdown passes in NFL history. It’s taken on added intrigue of late because there is about to be a change at the top. Barring injury, both Drew Brees and Tom Brady will pass Peyton Manning for the No. 1 spot on this prestigious list.