2 Healer war is strong, but not the best, it can be beat.
I as MM can easyly drain a priest, wile A rogue can keep up with a druid with np. IF he tends to slip, I can always send pet on him.. We both got some ccs to get that warrior of our backs, scatter, traps , scorpid sting, sap and blind.
I dont know what kinda setup you run
you failed to mention it, but thats how we delt with it, I stopped with 3v3 btw, as a MM hunter It always went a little to fast for me when I had 2 dps on me
I lack a bit of skill to be a succesfull Marksman in 3v3 I think