This isn't exactly a simple question, but it is an item evaluation one, so I think it fits better here than in the endgame blood thread:
I am having a hard time valuing
[Resolve of Undying], which of course had to drop our first week instead of one of the trinkets our dps would kill for. I had almost completely discounted using it when evaluating T13 gear in favor of
[Soulshifter Vortex] and
[Fire of the Deep] . However, Resolve provides a ton of avoidance (>3%) almost passively.
I'm currently using it (for one week anyway) on Madness, since the only tank damage that matters at all there is Tetanus, and an avoided attack can make the difference between completely unhealable damage and no damage at all due to stacks falling off. Even here, though, I wouldn't want that randomness during farming or once we're working on heroics.
So the question is - at this point, is pure avoidance, even in such a large amount, worth considering over the other options (even T12 heroic trinkets) or should we be focusing almost completely on either EH or Mastery?