4.0 (Pre-cata) Stam or avoidance trinkets?

[Arnock]

So I transfered Arnock over to the PTR to get a feeling for the new rotation as well as the reforging system, and I went through and reforged the highest stat between dodge and parry on each of my items to mastery rating.


When I reforged my two avoidance trinkets, I realized that, with them, I was only .8% shy of block cap (~20% dodge/parry and ~47% block) Although it costs me close to 5k HP to do this.


My gut feeling is that the consistant 30% less damage from block cap would outweigh the 5k HP, but I was wondering if there had been any more advanced theorycrafting on the subject than my "gut feeling."

[d503]

It all depends on what the boss is hitting for, and what part of the hit receives the 30% mitigation. I'll let the big brains handle the real math, but presuming that your block is reducing 30% of your post-armor/passive bonus-mitigated damage, a hit of ~10k post-block would be required to make up 5k health difference had you not blocked.

I'm pretty that's fairly low on the scale of hits we'll be seeing in Cataclysm.