Jeath - Favorite healing fight was G'huun, other than the bugs. Fetid would have been a fantastic fight, but due to tuning problems it left a bad taste in his mouth. MOTHER needed some source of incoming damage other than crossing walls.
Preheat - Fetid, as he likes patchwerk fights that are tightly tuned but the mechanics felt all over the place. In the reclear, Zul as it's a balancing act of holding things alive for 3 minutes, then it dies. Least favorite was MOTHER as there's nothing fun about standing still for 30 seconds.
Max - Favorite fight is G'huun, as there's a lot of interesting things you can do as tanks. Mythrax was also a great fight and might be the most difficult farm boss. Thinks they screwed up Zul.