I don't know about Embid.
I admit I haven't been watching full college games, but I've checked out some of the scouting report articles / videos and he still looks pretty raw offensively.
He seems to me like the biggest gamble out of all the top 6 prospects.
The way I see it is this:
1. He's a big guy with an NBA body and excellent athleticism
2. He has excellent defensive skills already, and probably will develop into one of the top defensive bigs in the NBA
3. Offensively he still looks like a work in progress. He shows early signs of some solid post moves and a decent jumper, but seems to still have a long way to go in developing those tools.
4. His IQ looks pretty mediocre. Not Fab Melo or JaVale McGee bad, but maybe Kendrick Perkins or DeAndre Joran. The flip side of this is that he hasn't been playing basketball for long, and he's developed very quickly in the time he has been playing so this hints at high upside. But then again, that's what everybody said about Fab Melo.
Again, I think Embiid looks like one of those guys who could go either way - he could become the next Hakeem, or he could become the next DeAndre Jordan. Having DJ as your floor is really not bad, but if you went into a draft this stacked with a high lottery pick and ended up with DeAndre Jordan 4 seasons down the track, you'd be a bit dissapointed.
So yes, I think the "next Hakeem" comparisons are a bit over the top right now because Hakeem was possibly the greatest offensive center who ever lived, was excellent in every facet of the game and had BBIQ that was off the charts. The kid looks to have a ton of potential though, so who knows.
All I know is that I wouldn't really mind a DeAndre Jordan on this team right now (a guy who can give you 12 rebounds and 3 blocks) so even if his offensive game and IQ never come around, I still wouldn't complain about drafting him.