Agree, at those lvl brackets there are many zones to qst in. Think the 28- low 30ish bracket had some limited zones, but not the bracket the OP is talking about.
I leveled my warrior in BC by questing.
I would either grind mobs for gold, or look to quest for rep. If you can do both at the same time then go for it.
Another option might be PvP? Not sure though.
If your in a race to get to 60 do what they said. If not, hang out in AV from 52-56. Get some honor, turn in quests. Then At 56 you can go to WSG. Then at 60 all the quests you skipped are worth double gold, and you can buy your epic mount.
If you’re looking to grind mobs to save quests for gold later, I’d add the Satyr camps in northern azshara are pretty good as well. Drops runecloth, felcloth, mongoose elixir pattern, and some lw patterns. They are better to grind on mana classes though, since they have dark runes as well. Miners can also take advantage of some rich thorium nodes in the area.
For maximum value, be sure to grind out unfriendly with the timbermaw first, since you can check their camps for chests and mining nodes and they won’t attack.