Of course, I had to check ...and it is actually over half...11 in the past 20 Super Bowls. As was mentioned 7 of those are Brady(6th RD). The other 4 are Brad Johnson (9th), Drew Brees (2nd), Russell Wilson (3rd), and Nick Foles (3rd).prolly half the last 20 superbowl winners started a QB drafted later than the 1st (yes, a lot of tom brady in there).
The 9 first round winners were Ben (2), Peyton (2), Eli(2), Flacco, Rodgers, Mahomes.