How did this thread get so long and why are people now comparing individual classes?

I thought this was all about how the OP thinks Tanks should contribute to a higher % of damage done to the boss by the end of the fight.

Just randomly pulling a top 10 fight on e3s here are the numbers:
DPS: 63%
Healer: 19%
Tank: 18%

So basically OP wants the gap between DPS (63%) and Tank(18%) to be reduced. By increasing the DPS on tanks it'll reduce the % for both DPS and Healer (but it'll take a bigger % from DPS) and reduce the reliance on competent DPS to make DPS checks. I'm not really too worried about Healer doing too much dps myself, however, in the above example it would be more beneficial to bring 3 healers and 1 tank if the fight mechanics allowed for it to be single tanked.

I personally would want higher dps on Tanks so that when I have to Tank I don't need to rely too much on the quality of the Pug DPS.