I'd take Grayson Allen. He is a bit of a momma's boy, but the kid has serious talent.
Here is my early season evaluation.
As far as tiers go, I have Fultz above everyone else slightly. He has the potential to be a superstar, with few significant question marks to their game.
Then Ball, Isaac, Giles, and Ntilikina. These guys look like they have all-star potential, but there are question marks about their transition to the NBA game, injuries, etc.
Then Jackson, Fox, Smith, and Tatum. Each of these guys look like starters who might might an all-star in their career, but not franchise cornerstones.
I think Lauri Markkanen could easily be a big riser in this draft with there being so few bigs at the top. He has to show me more toughness and physicality inside, but the kid is a legit 7 footer who moves like a swing and can shoot. Blossomgame could be a Butler-like guy to get at the end of the 1st round.