Board Thread:Questions and Answers/@comment-24893955-20140502202707/@comment-23853777-20140504213426

Louay Boom Boom wrote: 1-Perk can shoot explosive balls of acid while murk can swallow energy and redirect it back,'''perk Gourmands can take a surprising amount of punishment for a creature of their size, Perk Upchuck able to take the force of a moving car impact as well as being thrown through a wall. Murk Gourmands can spit out slime. (...) 2-Murk was awesome, but now i Omniverse,perk is better.'''

3-Perk gourmands are more thought-oriented while murks are considered more action-oriented  and attack minded.

It's Perk Did you really need to spam that much?

Anyways, I'd say Perk, just because they are (apparently) more durable and could probably outwit Murk.