If you consider raidloot.com item search, you'll notice that it places great value on heroic Stamina implicitly. Where 1 hSta equals 15 HP, in searches that include hit points that means that in the typical weighted searches like 1 hAgi = 4 AC = 40 HP = 2.66 hSta. In other words, hSta > AC ! Uhm What!?