This is a tough question right now.. I really can't say definitively until I see their combine measurements, If Diamond Stone is infact 7' in-shoes, which I don't think he is, it could sway my opinion, also Stone's body fat % figures to be one of the more anticipated body fat %'s taken at the combine, I suspect he's gonna be like 8% or under, which would mean he's really transformed his physique in just a year or so. Interested to see their vert measurements too.
Preseason no doubt I'd have told ya Diamond Stone, he's certainly more fluid and a better shooter, I honestly think he's got some Jahlil Okafor to his game, he's got potential to draw plenty of fouls. He might be one of those bigs that shoots 80-85% from the FT line too.
Bryant really has a bunch of stuff going for him that could all add up to really impress a team, he's a better prospect than Jordan Hill IMO.. He's kinda rigid but his shooting stroke is pretty damn good for an 18 y/o that size, with those long arms. He's ultra competitive too, he plays with almost infectious energy, and the ball seems to gravitate his way.. type of player i'd imagine Greg Popovich would like. He seems like the type that would run thru a wall if his coached asked, I could be wrong about that, but thats the impression i get watching him play..
Bryant could definitely outperform his draft position if he lands in the right spot, at this point I still suspect Diamond Stone has more upside though, so thats who I'm gonna say, for now..