I think Peterson was always massively overrated by fans, the media and thus the league as a whole.
He wasn't even the best CB in our division, that was Sherman, and he rode a few good years and some pro bowls to to a reputation he largely didn't deserve. Of his seven PB's he probably deserved 3, but once you get a rep those PB votes keep coming (See Marshon Lattimore).
A quality player, but nowhere near as good as many or he himself believed. Most definitely not a Hall of Fame player.
I'll always remember him as a player who cared far more about himself than the team as demonstrated by his "I'd rather have a gold jacket than a ring" comment.