Quote Originally Posted by Wubsie View Post
From what I understand, they do tank things that a slightly undergeared tank might struggle to survive against. Furthermore pet ress is such a fast cast now that as long as you macro it in to have it cast when one dies, you're unlikely to run in to a situation where all of them would be dead at the same time.

Additionally hunters just generally do more damage, basically all of which can be applied while on the move, indefinitely and are somewhat easier to set up functional rotations for.
All of this, but especially the bold part. I farmed Timeless Isle with my undergeared hunters while watching raid-geared tanks struggle with some of the named encounters. Couple that with glyphed Misdirect and it's really that awesome.