Toor is the best option of the 3 pets. He is perfectly suited to be timed with mage clock. His aa does wonders for all elites and somberholt too. Remember 99% of any maps is mobs & the 1% is boss......TOOR IS THE MOB KILLER.
Singe is a good survivability pet but he has no crit & his aa is no match for toor.
Maridos.....I jus hate him.