Oh yeah so every warlock in the raid stacked stamina. No? Yeah thought so.
In BT? Locks tended to stack Spirit, actually. Not sure if anybody remembers when Blizz first tried changing lifetap during this time...oh the outrage was worse than seen in the Mideast. =P
Illidan = FR crafted gear and such, which also had a ton of stamina.
Vanilla = Stamina stacking cause every other stat sucked too much.
WotLK = spell power.
Cata = Int
Panda = ...
When doing premade bgs, I run around with ~250k hp when not flagcarrying and ~300k hp when carrying flag with the ability to reach 400k+ health with cooldowns.
Edit: I happen to have this lovely trinket named soulshifter vortex hc which is pretty amazing in PvP right now.