for those who hate on gorillas... i have been taming gorillas since lvl 30 i got the one in stv.. ungoro crater, got it. i have had cats and bears and boars. i am now lvl 62 and i still have my gorilla... he is one of the best tanks i have seen... he holds multiple targets thanks to thunder stomp. as far as aggro he can pull aggro off of a 70 warrior so i would say he is good there. spend you training points on natural armor and great stamina and he can take as much damage as  you can throw at him... set your gorilla to attack a target and sit back and fire away with your gun or bow of choice (depending on dwarf or elf). they can also make an effective off tank to keep casters and healers free from aggro. for you young hunters out there tame a gorilla if you like to be asked back to groups. if you like to solo he will save you money on potions and food. and i appologize to the horde out there all my experience so far is with alliance so i don't mean to purposly exclude you.