I have the HAF XM. Good case, but I wouldn't get it again. 922 is ok, but a bit plain for me. Not sure I remember the blkhawk from my looking. Links would be nice. Any requires for this? If you want a nice looking case then consider the Corsair Carbide 400 or 500. I would have got one of those but they lack any form of hotswap/dock. Which I wanted so I could easily back up data.
Edit: I know you said HAF X and I said HAF XM, but I consider the XM to be the better case. The X is just bigger with less features because its older. XM is cheaper, slightly smaller, and has more features so I consider that one to be better.