IMO, prot warrior T6 helm is lacklustre compared to other classes. Keep the helm if you need it for 4 piece bonus. If not, I think that Tuskguards is much better for both EH and avoidance, which you will need for SWP.
Any other inputs from some other warriors? I think I'm going to use the T6 anyway because I think I have enough Avoidance / EH for rest of BT..and some more threat isn't bad at all..I didn't get any avoidance lost anyway
thats a hard question... both are good, personally i'd take the Tusk having 4/8 set bonus but is mainly depending what are you wearing atm. best advice is to swap from one to other depending the fight. And go for those 15stam gems