First of all, for you lazy people who don't feel like reading through much, I'll plaster the priority orders front and center. I'll justify them afterwards. I assume one thing - you are specced into Deep Wounds. Without Deep Wounds, you are honestly better off tanking the boss since it will be hard to do reasonable damage compared to another tank switching roles.

There are some posts about SBV sets which I find hard to believe. Long story short, you aren't going to do more damage in...

Insert mindless rant about how blessing of sanctuary is a completely overpowered, needed buff for warrior tanks to optimize threat.

After tanking a Naxx 25 and 3 drake Sartharion kill today without BoS, I was reminded of how dependent I was on the help of a trusty protection paladin. Tankspot already mentioned this, but Blessing of Sanctuary is simply too essential for every single tanking class right now - if the goal was to make all tanks equal, then why the hell do I need the help...