I think JRG has good potential but am not ready to compare him to Queenan, even remotely. It was a different era and he had Polahla along side. Also, I struggle to interpret many of the high school videos because the competition is hard to judge and the highlights focus on the best moments only. Also, a tweener might do well before college but get lost among faster, bigger, stronger players in college.
Not to beat a dead horse, but we lack two post players in my opinion, but I could be wrong.