Protection Spec..

I honestly think this is one of the best..


http://www.wow-europe.com/en/info/basics/talents/warrior/talents.html?tal=350050010000000000000000100000000000000000000055511030020123531351

I actually do not really get why to pick either Sunder Armor or Thunder Clap..
But Thunder Clap is more of a personal preference.. I prefer Improved HS due to Warriors mostenly tanking one mob, like a boss, or a hard hitting mob..

A few things i personally would have done different... but it's quite a while since i was Prot on my warrior so

Thunderclap is one thing i would have included, also Imp Bloodrage instead of anger management and maybe removed a point in iron will to get Imp bloodrage fully

Anyways... last time i was Prot my build was something like this:
http://www.wow-europe.com/en/info/basics/talents/warrior/talents.html?tal=050003000000000000000000500000000000000000002055511030020123531351

I love Anger Management for bosses like Gruul.. Or if you're not hit at all.. Gives a nice + rage, imo.

Yeah that might be a advantage, if you're gonna try stay second on the aggro list so he doesn't spank the melee dpsers