Khat I meant healing rain, not a totem. By drop I did mean you have to mouse drop it on the ground, never my favorite mechanic with multiboxing.

But yes I agree that whatever you enjoy playing is probably the class that will work best for a given team. I've logged many many non boxing hours on my priest for 8 years, and only ever raid healed on my priest and my monk.

About monks: I did mostly mean in a raid context, a lot of people seem to play them as VERY VERY squishy (lfr, flex, etc) and the worst raid of this tier for me was when someone came and tanked SOO on their alt monk. I think this is because not everyone is good at using their active mitigation correctly, but I couldn't be certain, I just know that other healers I've talked to agree that monk alt tanks are brutal and awful. For non-heroic five mans they seem ok, I forget what characters I used to do heroics last spring but one was a monk tank, and I missed my paladin tank and wished I had her instead. Like with healers though, if you main a monk and you really love how it works and you get how it works go for it, if you are just picking the "best" tank for multiboxing I'd go another direction.