I'm currently using heroic Bloodfall for tanking, and heroic Cryptmaker for DPS (and PvP).
My question is: assuming I am low on hit in my tank gear (I am) would Cryptmaker turn out to be the better choice? And would it be better or worse if I didn't need the hit?
Cryptmaker has 26 more stam, has hit and strength on it, and a slower weapon speed - it's superior for both threat and survival.
If you were over the hit cap already, then Cryptmaker's threat output would be lower (I don't know if it would be lower than Bloodfall, but lower than it currently is), but it would still have significantly more stamina.