Hello, I agree with Soultrain. Choice of your pet for raid really depends on buffs, so I am using sporebat when we don't have spell haste and hyena when we miss attack speed. When we have all the buffs I use spirit beast mostly, I tried several pets on dummy in Orgrimmar and found out that my spirit beast cat does slightly more (about 2k) dmg than the others I tried, like core hound, wolf, cat and goat. Hope this helps :)