So I play an 80 Ret, a (now)71 Mage, and a 7 Rogue.
80 is pretty boring for me, I love leveling.. not gearing. I use her to raid but that's only a few hours a week.
Mage is awesome, but NR is laggy. I like old world content.
So I got the Emblem of Heroism BoA Cloak for my mage when she was in her 30's. It's insanely powerful.
I have finally obtained enough Stone Keeper Shards for another item. My primary choices are either:
Get the leather cloak for my Rogue.
or
Get the dagger, and use my mage's cloak for rogue.
Basically it comes down to this. How massive is the dagger? Is it amazing enough to deal with wearing a caster back piece for 70 levels? lol.