I think as some suggest, that the best way to see future success, is to see if those players had that same success in college. So here is catch rate by distance from the top prospects :
So you can see ODB has the highest percentage (66%) on passes over 10 yards. The fact that ODB made his living catching deeper than other guys - you can expect more drops.
You are right about JJ though. I went back to the draft profiles and most agreed. However, Randle could be a better plucker. It's just he is inconsistent. That's more a product of work ethic...