The PFF QB rankings over the past four drafts (the ones we have final big boards for):
2019 – QB1: Murray, QB2: Haskins, QB3: Grier
2018 – QB1: Mayfield, QB2: Darnold, QB3: Rosen
2017 – QB1: Trubisky, QB2: Watson, QB3: Mahomes
2016 – QB1: Goff, QB2: Wentz, QB3: Lynch

— Cam Mellor (@CamMellor) May 1, 2019