I'm looking to try some pvp in Legion and I'm wondering what spec is the most durable, hardest to kill. I don't want to heal. I want to be right in the middle of the action, soaking up a lot of damage and either healing it or mitigating it. I assume the best specs for this are tank specs. So I'm looking at prot war, prot pally, maybe blood dk. Any of those stand out? Or is there a dps spec that somehow is even harder to kill?
I'm just going to be doing random bgs, if that matters.