Tank and Support Tax for shorter DPS queue times is the way to go

this looks good on the surface but has not net advantage or disadvantage. (you have shorter queue times, because no one was allowed to skip ahead of you) Play enough games and leavers will average out the queue times.

I think the best answer is just to show us win/loss/tie record on each role. I’m going to play all roles more or less equally. So I’d at least like that information.