I actually like Holland a lot more than I liked Kuminga in 2021. Their numbers look similar on paper, but Holland to me has a lot more suddenness and lateral agility to his game while Kuminga had more power. I worry about his rim finishing - even though the guy is an automatic paint touch, he shot 57% at the rim in a league where there is basically no paint protection.
The main argument for Holland from my perspective is this:
Elite draft prospects are a combination of 3 things:
1. Youth
2. Physical tools
3. Production against similar age or more mature prospects
In spite of his sometimes bonehaded plays and terrible outside shooting, Holland is probably the guy in the draft that best combines the 3. He'll still be 18 on draft night. His athleticism clearly pops given his first step, lateral quickness, and transition finishing (To me it's a wash between him and Dunn as the best athlete in the draft). And despite being put in a role that he clearly wasn't used to, he put up decent numbers against more mature compe ion. He actually did way better as a first-time primary initiator than I expected for an 18 year old, especially for a guy who was playing really without a point guard for most of the year and who played his entire high school career as an energy/glue guy/finisher. And he did improve over the course of the year; during the regular season his FT% was 76% while he put up a positive AS:TO. He shot poorly, but his form looks pretty good on his jumper as long as he corrects his base a little. And given his youth, you'd expect the rim finishing, handle, and jumper to improve over time especially as he gains more strength.
Compared to Kuminga, he shoots FTs better and has a higher motor both on tape and based on his metrics given his high OREB% and high STL%. Between that and his lateral agility and better defense, I think there's a good chance he turns out better than Kuminga down the line. Most reasonable estimate of his measurements are 6'7-6'8" with shoes and 6'10-6'11" wingspan which is decent for a wing especially with his athleticism. I think he's a perfectly reasonable top 3-5 pick in most drafts because of this so getting him anywhere outside the top 4 is probably a steal.
As an aside, you can very easily envision the play style that the Spurs would have if they took Holland and Sheppard. 2 elite perimeter defenders (Holland to guard the quick wings and guards, Sochan to guard the strong wings) in front of a Wemby backline. A defense focused on turnover generation and playing the passing lanes between Sheppard and Holland, both of whom had elite STL%, who have full license to gamble with Wemby behind them. An elite shooting PG who excels at hit-ahead passes in transition and pushing the pace synergizing with an athletic wing who excels in transition finishing. Sheppard's lack of advantage creation in the half court being covered up by Holland's ability to generate paint touches allowing him to function as an off-ball shooter. It's an interesting combo that I haven't thought about before but definitely seems appealing.