Who is the best running quarterback in the NFL? JUNE 5, 2014 AT 12:18 PM Sports Illustrated

Athletic QBs add a new dimension to offenses, but often the decision to scramble comes at the expense of the passing game. Hours of film study show how Andrew Luck, Cam Newton, Russell Wilson, Colin Kaepernick and Robert Griffin III rate as decision-makers—and difference-makers—with their legs