I used these locations to bot with Pocket gnome (mac bot) and found it gave really good xp rate/hr and no problems with the area. One is in Dragonblight (picture below) and the other in Sholazar Basin. The bad thing about Sholazar basin (which is also a plus) is that they mobs respawn instantly. Your class needs to be able to take on 2-4 mobs at a time and have no downtime. I never died as a DK or paladin. A priest should do fine and any other class that can heal.
With the Dragonblight area, by the time u start the circuit again (its a very small area) the mobs will have respawned. Both areas drop very nice frostweave cloth and several grays with nearby vendors.
There is a mob called Avatar of Freya (a big giant) the location is to her right. The mobs are undead.
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