Healers and tanks certainly get more.

I can play my SCH, AST, or WAR horribly bad, lose threat, cause a wipe, and still walk out with 2+ comms. I get Sohm Al Normal (53 dungeon) on RDM and the healer and other dps die, and I make myself juggle vercure's and dps to keep myself and the tank alive for the final phase? No chat praise, only 1 comm.

Ya, sorry. I'll let us die next time. I'm positive it was the warrior who gave me the 1, the healer and dps probably thought the tank solo'd it forgetting I had vercure (Reminder, synced to 54, no verraise.)