Last night I dinged 56 on my shiny new hunter (ya me) and I am starting to bounce her future around in my head.
On one hand I can see heading out to Hellfire at 58 to start questing there. The rewards are a huge upgrade, the quests give over twice as much experience, and the random drops will DE into better materials.
On the other hand if i wait till 60 or later I will have an easier time on the outlands quests. I would also have lots more quests I could do for cash at 70. Admittedly not as much of an issue with the variety of dailies available now.
I am a bit undecided, what do you folks think?