In my mind there is no better stat in HToCr then stam. The majority of "Shit That's Gonna Kill Me" is unavoidable and unmitigatable magical or bleed or knockdown/freeze (which is mitigatable, not avoidable) damage. I don't die from standard melee.
Sure I may die because I didn't dodge the melee that followed the impale, but only if my EH is not high enough to survive both; at 40k unbuffed HP there are almost no occasions where my EH is insufficient to weather a burst, dodging or not.
Massive levels of avoidance just lends itself to overhealing. My healers are spamming me, anything above the standard avoidance from gear tends to be overheals.
As for armor, it has it's place in HTOCr, but if I HAD to itemize for only one stat; it will be stam.