I really like him. He may be a stretch top 3, but if he really is only 18, I wouldn't write him off. His measurements are very similar to Dwight when he was drafted, but BB has an even longer wingspan - if he's in the building he has a chance to block a shot or grab a board. His intangibles score high as well. He has a good motor, and is routinely the loudest guy on the court. Defensive anchor gold!
And let's not forget that he plays in one of the top leagues in the world - ACB, which he leads in blocked shots while playing only 17min per game. So it's not like he's solely dominating peers, but rather grown men, already.