Depends on what aspect of GG Jackson you're referring to. You mean who is the 18 y.o. who took lumps this year because he's young? Or, who is the 6'9" wing who can create looks for himself off the dribble? Or, who is just immature?
Dink Pate is the highly-rated recruit who tried to jump a class, but got denied. Ron Holland is an 18 y.o. whose inefficiency makes him look borderline undraftable, but he's still a good prospect. Cody Williams is the long wing who can create off the dribble, but had a mixed freshman season.