In our first update since that move, Stone, a 6-foot-10, 235-pound center, has held on to the top spot.
Stone's ability to score on the low block is arguably his biggest strength. He's confident in his post moves, has a handful of them and has great touch with either hand around the basket.
Moving up to No. 2 in our updated rankings is Oakland (Calif.) Bishop O'Dowd standout Ivan Rabb.
An athletic power forward, Rabb has shown improvement over the last year. At 6-foot-9, he moves and jumps well, has some scoring ability on the block and defends his position well.
Just behind Rabb at No. 3 is New York native Thomas Bryant.
A wiry post player, Bryant impresses with his skill, especially for his size (6-foot-9). He has good hands and touch, plus he can score inside or he can step out and hit jump shots.
The 2015 rankings have expanded from a top 25 to a top 40. There isn't one committed prospect on the list.
The list is big man heavy, as 20 of the 40 players are power forward or center prospects.