Post #29
I'm with ComMcNeil on this one.
The time of spike damage has passed and we're not in the risk of dying in two hits anymore. Even a "spiky" tank, who focuses on avoidance, will take at least 5-7 shots before going down and that, to me at least, is already smooth enough. The point then becomes lowering damage taken, which it seems is accomplished through pure avoidance over mastery stack, at least until a certain threshold.
Unfortunately, I lack the knowledge to do my own math or double check these numbers, but according to
this post from Tankspot parry+dodge will result in less damage taken until 5400 combined avoidance ratings (mastery included). From there on out it's best to stack mastery.
Also, regarding the threat discussion, assuming these values are correct (I had them saved in my HD from patch 4.0.1, unfortunately can't quote the source):
Concussion Blow - (75/100*AP)*2
Shockwave - (75/100*AP) *2
Heroic Throw - (AP*0.5+12)*1.5
Devastate - [1.5(weapon dmg)+336*(number of sunders on target)]
Our priority becomes:
Shield Slam > Revenge > (Rend - with 30% debuff and/or through BnT) > SW = CB > HT > (Regular Rend) > Devastate
Which probably means Devastate will mostly be used to prevent stacks from dropping.
Note: Shield Slam's formula was changed in 4.0.3 I believe, so I didn't provide it here, but we all agree it's our best threat generating ability.
What really interests me in this discussion is the point for point value of talents like Deep Wounds, Incite and Cruelty have for threat.