Cam has a lot of street cred among players of all level. It's weird that I never read a young player think highly of Andrew Luck.
I think it's because Luck hasn't won anything yet. He is a very good young quaterback that should go far but he didn't win anything in college and hasn't really won anything substantial in the pros yet.
Most of the other young quarterbacks get their credentials because of championships or top college honors such as the Heisman.