I use vigilance for almost everything. It's really great on Blade Lord Ta'yak when he's doing his second Overwhelming strike on my OT, because it's up every time and I can just throw it on him, then taunt afterwards. Also great on Heroic Stone Guards for putting on my OT (because he takes the two dogs and I do the call-outs) to reduce his crazy spikes. Also, I can't even use safeguard on this fight because by design I have to stay away from the other tank.
Hunters never die, they just choose to commit suicide. Often.