If I'm going to compare two big men in the 2025 draft that were both raw and young when drafted, age 18, I think of Khaman Maluach and Joan Beringer.
Maluach was selected at #10 and Beringer at #17.
In a head-to-head comparison, the link below is what it looks like. Beringer's stats are slightly better except for free throw shooting.
Compare Players: Check out the head-to-head stats of Khaman Maluach and Joan Beringer including their awards, honors, championships, playoff and regular season stats, and much more on Stathead
www.sports-reference.com
Just my 2 cents, but based on what I have seen, Beringer has the higher upside although it's too early to draw conclusions.