I would have to pick them all.. The thing that Warriors use Rage is a big bonus for me, 'cause i tried the paladin class and death knight, which is very similar. But the mechanism of it is just adorebal, I really love it and could used that on all of my characters really. And I'll level a Bear tank as well.
The armor's are very neat, atleast the tier 8/10. Those were the best one. Rest is just amazing.. Being able to tank and so on is just good!