TherionSaysWhat, Assassin Reject wrote:
Priorities for a newly 80 plate wearing tank, IN ORDER:
540 Defense or the Critical Immunity Cap (or so-falsely-called "def cap", shudder)
25-30k Health via gear and stam gems - once you can swap out any + Def gems for + Stam, you'll start to approach good health numbers.
Then you can start stacking Dodge and Parry. If you're trying to decide between two gear pieces exactly equal but that one has Dodge and one has Parry, take the Dodge. Otherwise they're about equal in rough statistical value.
Be sure to seek out Hit (generally never past 263) and Expertise (generally never past 26) as well but don't value it more than the above if you have some (say, half the "caps"), and you should.
Beyond that, start reading up on tanking and stat weights. No short answer in this thread is going to be better help to you than any of the great articles that are out there. Maintankadin, tankspot, elitist jerks, etc...
For those interested, I'm only posting this as I don't believe it's in the FAQ.
:)
That being said, I say the following.
Heroics is 535 Defense. Raids is 540.
22-30k health is the range. 22k is heroics, 24k is Naxx10, 25k is Naxx25, 30k is Ulduar10, 40k is Ulduar25. These are unbuffed numbers, they are your Health survival minimums to MT, they can be lower if you are the OT. Can vary by fight as well but those are the numbers in general.
Dodge is better than Parry. Parry has harsh DRs ( Diminishing Return).
Stamina (health) once past Naxx wins.
Hit is good but a threat stat. You technically don't need it to tank but it helps for many encounters. Therion's numbers are right I would assume. I trust him.
Expertise, same as hit BUT expertise over 26 reduces mob parry. Mob parry is bad. Not as bad as it was tBC but still bad. Once you meet Therion's exp/hit numbers if you have a choice go over on expertise. More expertise is good. Only if it on a piece of gear you would use any way. Point being equal gear and the difference is hit or expertise take the expertise.
Try and get away from using defense trinkets and sword defense rune. Gem for it a bit if need. The option to switch trinkets is huge. Getting 4% parry off the DR is even better. Both is the best.