Since I play Surv I tamed a tiny frog and shrunk it more with the glyph so I could see more in melee and target things better. What started out as a practical choice is now one I keep regardless of pet bonuses or abilities. I had just done the quests with Krag'wa before I got him, so I gave him a similar name. He's the best little frog and he has saved a lot of wipes. No one ever expects the tiny frog off-tank!