20. Jim McMahon
McMahon is most known for his Super Bowl win with the Chicago Bears. However, like a few men on this list already, McMahon was a huge star for BYU. McMahon attended the school all four years, but his last two years he was the starting quarterback. McMahon skipped his playing time for two years between his sophomore and junior year to do the two-year Mormon mission. By the time he came back, for his junior campaign, he was impossible to stop.
McMahon threw for 4,571 yards and 47 TDs. The latter of which was an NCAA record for a bit. He had a modest Senior year, throwing for 3,555 yards and 30 TDs. He won the WAC Offensive Player of the Year Award in 1978, 1980, and 1981. In ’81, he was also given the Sammy Baugh Trophy and Davey O’Brien Award. Sadly, he never finished higher than third in the Heisman race.