I'd still gamble on Embiid.
I probably went to 15 games his season at KU and left every single one of them wondering if he actually knew how to play basketball. It was basically a taller version of Thomas Robinson. Athleticism only gets you to a certain point. Can't ever imagine this guy being a legitimate starter.
Embiid did remind me a bit of Kwame in the pre-draft.
Embiid was amazing in the drills like Kwame was. Looked like a stud.
But Embiid was unable to know when to use those skills consistently in games. You could see glimpses of the talent he had but he couldn't consistently dominate. He should have owned the NCAA. Almost every decent big man goes pro after freshman year. Very little big man quality in the college game anymore. A big man with Embiid's athleticism and skill level should have owned the NCAA. But like Kwame, Embiid lacked understanding of how to play 5-on-5. Great in drills and one-on-one.
On the plus side, Embiid only learned basketball recently ... unlike Kwame, so hopefully that will (well, would have been if not for injuries) a separating factor.
But there were definitely some things there that reminded me of Kwame in Embiid.