As a PLD main, I have been starting to level up my DRK (currently Lv63 after being Lv60 for a long time). In the current dungeon, I like how I can stay in Grit, and spam my Souleater combo with Dark Arts (I barely have a need to Power Slash at the moment). Since I don't dps on my tanks, I like it's current setup. Please don't change this.

I was good as a healer, but struggled to dps on her.
I was good as mechanics and such as a dps, but struggled to dish out high damage.

Tanking is my last resort to continue playing this game, and tanking has been great to me. I cannot dps much as tank, but I do everything else fine. I've already retired BRD, DRG, and WHM. I'm left with PLD, DRK, WAR, AST, and NIN.