First off I have to say that I certainly do not want the Kings to take Hibbert with the #12, that is a reach in THIS YEAR'S draft. That being said I would not be disappointed with the Kings taking him if they can do so later in the draft.
It's so easy to get lost in the hype of young flashy players with tons of potential and forget the consistent performers. Let's not forget that Hibbert was a guaranteed top 10 pick last year and might have gone earlier as I remember us being worried that he wouldn't drop to #10. This year he is projected to go as late as the 20s, why? Because the novelty has worn off, we have seen him before and this year there are a whole new crop of players to see.
In reality, based on college performance he played just as well last season as the one before and don't forget that last season Georgetown's coaching was documented as terrible in almost every sports publication I read because they didn't use their best players well and that included Hibbert.
Another thing, the idea that Hibbert is slow and unathletic. The man is extremely tall with a wide body, 7'2" at 280 pounds, men that big are generally a bit more unathletic than others. But how many times do we read about a 7-foot super athlete who's only problem is that he needs to get bigger and he fails because he never does? So there will always be a problem, either athletic but too weak or strong but not athletic enough.
In conclusion, Hibbert may be slow and unathletic compared to some other players in this draft, and the last draft for that matter. But he is not slow and unathletic for a man of his size! On offense he has a nice array of post moves and the size to create space, combine that with a developing mid-range shot and he is tough to handle. So tough that he shot to the tune of 67% two years ago and 61% last year from the field, he always tends to get fouled a lot because of his size and he shoots near 80% from the line, you can't beat all that. Defensively he is a presence, a shot blocker, a shot changer, and a big post defender. If coaching can improve his rebounding he will be a beast...he may not be worth a lottery pick right now but he is definitely underrated.