http://worldoflogs.com/reports/rt-yn...ep/details/57/
if you click on 'damage by actor', you see who did how much dmg to the intermission adds, throughout the whole evening. your prot warrior is doing a good job, mostly everyone else isn't. one of our wipe evenings to compare with:
http://www.warcraftlogs.com/reports/...s=1623&wipes=1
obviously it depends how you split things up, I would guess what you do favors your warrior a bit? but overall it has to be more flat. if one guy pulls ahead that much, it looks to me like either people aren't maximizing their movement/dps time yet (dps waiting for a bubble to spawn on the middle pack instead of rushing to dps the last 2 groups for example) or your assignements are very good for the prot warrior and bad for most others.
if you only look at your last attempt, it evens out a bit more although you still have 3 guys pulling far up front with the prot warrior, hunter and one of the warlocks. again, your monk tank barely beats out your disc priest (who's doing a good amount though, 25% more then ours roughly). but those logs don't say that much as a lot is about who is assigned to kill what.
you'll need to talk with your group and ask them what can be done to improve their dps, including changing assignement. also, there is no waiting, no one can stand about and wait for someone with a stun/aoe silence to arrive. if that occurs more then once, you'll need to change something so that it doesn't happen. the only good thing is that everything but the protective zones is 100% the same every go, so it's just a matter of optimizing things. but it's the roughest dps check in the encounter now.