Twilligt texts for reputation (they can also be sold on AH for ~2-4g for a stack of 20) and twilligt armor set to summon lesser lords, which often drops greens and a medalion, which you turn in for �Bag of spoils�. They contains items and nice stuff. It also gives reputation...
Then in WoTLK Borean Tundra Grizzly Hills Then in MOP: Any - has one of the best mob/quest density for all maps. Then in WoD: First map you land on after doing the introduction scenario, do all the quests, collect all the treasures. With experience pot from the vendor and hierlooms,...