I have been running 3 hunters. I am currently at level 21. I group frequently with a guardian and it is nice for when things get within melee of me, but I do a good job of not letting things get within melee of me. I have hit a group of 6 mobs that were one level higher then myself and was only in melee with 2 of those mobs for a short time before killing em. I look forward to a full group with my 3 hunters and think that the best combination would be to add a min for heals, then either a LM or Burg for some CC on multi pulls and a Captain for buffs. I can arrange my hunter around the main group and bounce agro from one to the other if need be to keep the main mob from beating to hard on them in melee. It has been a lot of fun so far and I haven't even been getting much out of my second char on my main PC yet, mostly auto attacking and tabbing now and then, but once I get full control by broadcasting to that window full time, my 3 hunters will be even more impressive and fun to play.