Can't figure out if I should replace warrior in this group

[Scelesti]

I've used all the tanks(at lower levels) and I've used my blood DK at level 85.

A lot changes from 84 to 85 in regards to how you tank. At lower levels I could get away with a lot more than I can now on my DK, and I have a lot less to really watch. Maybe I'm a little undergeared and have to work harder(most likely the case), but before I hit 85 it was 1000x easier. I've boxed all 4 tanks at lower levels and honestly they all play pretty much the same(paladin being a little different): do a couple of build up moves, then finally get to execute your AoE abilities.

I wish I could give some advice as far as tanking goes on which tank to use, but honestly, you should base your decision on preference really...just keep in mind things are going to get a lot harder once you hit 85.

[d0z3rr]

Well lucky for me I won't be doing any 80 end content. I'm only getting to 85 to make running lvl 70 instances and older raid content faster and easier. I was close to killing twin emps at 80, so dinging 85 will be an easy kill.

So far I am loving the blood dk as a tank, more than pally definitely. He's lvl 70, so far I think his self healing abilities are pretty meh, they really don't heal for that much.