1. McMahon - All American, Davey O'Brien, Third in Heisman, tons of NCAA/school Records, yards, wins.
2. Detmer - Heisman! 2x All American, Third place in Heisman, Davey O'Brien 2x, YARDS
3. Bosco - National Championship, Undefeated, Second in Davey O'Brien, Third place in Heisman, Led nation in total offense
4. Young - All American, Finished second in Heisman, Davey O'Brien, Dual Threat ability (1000 career rushing yards)
5. Marc Wilson - Schools first consensus All American, Sammy Baugh Trophy, Undefeated regular season, paved way for future QB's,
After these guys, for me, the debate for Beck, Hall, and Z Wilson all have good arguments. But none of them match the All American Status, Heismans, NC's, Insane Record setting achievements and awards of these top 5. Anyone claiming Z Wilson as the best ever, simply hasn't been a BYU fan for very long. He was great, but understand this: BYU has one of the greatest QB histories in college football, period.