To give You some general advise, try to ged rid of some hit and replace it with some expertise. You are already near the hitcap but very low on expertise. The ring from TotC heroic has no defense on it, but has some expertise and a blue socket, so if you replace your Earthshaker inrg with it, it will boost your threat and your Health a bit.
Also the tanking sword of TotC heroic has some expertise and the same dps as yours, so i would recommend farming TotC heroic + non heroic because the trinket from non hero would give you a nice chunk of stamina and the armor proc is also very nice.
The last point is, you should replace one of your conquest T9 items with the badge items, because you dont need 5 T9 for the set bonus and the non set badge items are higher item level, so replace whatever T9 piece you feel getting more out of a non set.
Here is my a link to my Warrior, i know my Gear is far better than yours even, if its a bit outdatet but it should give you an overwiew of what stats to aim. I try to avoid wasting socket bonuses, because as a warrior you can always fit in a gem without losing to much. On lower gear levels it doesnt matter if u have like 33 oder 36k health. Try using dodge/parry/expertise + stamina for red gemslots, defense/hit + stamina in yellow, pure stamina in blues.
http://eu.wowarmory.com/character-sh...ock&n=Kharrath