Probably best to continue to gem for Stamina. Avoidance will cause you to take less damage than mastery, but mastery will give you a smoother damage profile, which is easier to heal. Try to keep your dodge/parry close together with slightly more parry than dodge. Reforge for hit/expertise ONLY if you're having trouble holding aggro. I have 18 expertise and 5% hit, and I'm holding aggro just fine as is.
That's pretty much the consensus as I've seen it thus far.
Kathy, I said, "I'm lost" though I knew she was sleeping
I'm empty and aching and I don't know why
Counting the cars on the New Jersey Turnpike
They've all gone to look for America