Originally Posted by
Shieldarm
Something to keep in mind about Pillar is actually the Stamina it provides. Or more specifically, its interaction with Resolve. A little while back, someone posted the formula Resolve uses, which came out to show higher stamina actually slows the rate Resolve's percentage goes up, or in effect lowering your resolve. What that means for you, is weaker Shield Barriers. While I can't confirm the guaranteed accuracy of his formula, it is fairly easy to test.
I popped a stamina flask, went to a tanking dummy, and watched my resolve. At between 49-50k damage, I popped a 60 rage Shield Barrier, and backed off, as I record the value. Rinse and repeat. Then, I turned off the flask, and repeated it. Had about 40 points for each, still using the 49-50k damage range, and without a flask, my barriers averaged about 1.6k stronger absorbs.
Stamina is good, if you find you need the extra hp to even survive the hit. But, if you're able to survive it, and it doesn't drop you into the 1-2 shot range from it, then it will negatively impact your overall damage mitigation and smoothing. For that reason alone, I myself would rather use even a 2/4 Knight's Badge over a normal Pillar of Earth, Warforged or not.