Where should I go hunting at 42+?

[Gentlemanly]

I have 42 tauren warrior with good items. I want to know: after I complete more than 10 quests in BB and probably will be at 43 lvl - where should I go hunting? people say: there are 3 places. Tanaris/Hinterlands and Feralas. Can you tell me what lvls is each of these areas? Where are more quests, where less, where is easy lvling and easy quests, where hard. Tell me where should I go at which lvl and why? Thanks :)

[lenthas]

Feralas probably the best of those choices, till 48-50 if you can, then ungoro a bit.

If you want some fun however you can go to tanaris, but be ready to be ganked non stop, not only from lvl 80's who have nothing to do, but regular same-level players who compete with you for the mobs, you have a nice dungeon there however, and a few dungeon related quests, which you can try to do at 44 I think.

[Naatla]

Take a look at this guide, it helped me : http://www.joanasworld.com/azeroth.htm#28