Regarding your question on which pet to use, I prefer using a boar for each hunter. They eat just about anything, have high armor, and have the charge/stun/interrupt ability. I used ravagers for a while, which have great dps, but I just couldn't stand to hear the sound they make when I send them in to attack. I know it's a goofy reason to abandon them, but it really got on my nerves after a while.

I use a priest with my hunter team and although I can't add any additional dps buffs to the group, I can add a significant amount of health and survivability.