Never understood why DPS players get so butthurt over a tank doing more damage than them. It's not like you can stack tanks and make it work, so when you only have one or two tanks doing their job and pulling high numbers what difference does it make? It's shocking really that so many people get bent out of shape that a tank does more damage than them. And honestly aside from trash pulls (and sometimes not even that with survival hunters, good warlocks, etc) tanks don't outDPS the DPS unless they are absolutely awful or the one odd fight here or there allows tanks to hold multiple things on them at once which is where all that dps really comes from.
Single target, a good dps will beat a tank unless there is a gimmick.