When it comes to the best number 12 in the NFL, there are a few names that come to mind. First, there is Peyton Manning of the Denver Broncos. He is a surefire Hall of Famer and one of the greatest quarterbacks of all time. Another name that comes to mind is Tom Brady of the New England Patriots. Brady is also a future Hall of Famer and has been one of the best quarterbacks in the league for many years. Lastly, there is Aaron Rodgers of the Green Bay Packers. Rodgers is currently considered by many to be the best quarterback in the NFL and could end up being one of the greatest ever when he ultimately retires.