I am OPs 33, Guardian 32, and BH 28.
I find the Ops stuns quite underwhelming when compared to other classes. I'd except the 'rogue' to have onpar with most of the other classes but I have found it is actually less cc (in battle) than the guardian and pretty silly that this is the case.
Guardians have way too much CC. I can appreciate tanks having some snares etc to keep their enemies within smacking range, but the existing guarding kit I have is pretty insane... Force Push, Force Statis, 3 second stun on force jump, hilt strike. Really? Thats better than Ops CC and I really don't think that is fair or balanced.
BH, weak as it should be. They are a glass cannon and should have some abilities to keep people off of them but not enough that they can just dps people down without effort.