Quote Originally Posted by Gamemako View Post

You could just as well say the damage is 7499, and that PLD is therefore 4.16% ahead. Neither are a meaningful result. A healing bonus will not allow your tank to survive a big hit, and neither bonus is relevant to that. The more accurate comparison is that Shield Oath reduces the amount of healing required by 20% while Defiance reduces it by 16.667%. Natively, a healer has to spend 4.16% more time and MP healing. You could then include other aspects, such as blocking, self-healing, and the net effect of mitigation abilities. Again, there's a lot to it.
The point was to discuss shield oath and defiance alone. How do they compare to each other without other factors. I was just attempting to show that the two passive "stances" are actually very similarly powered with pld having a minor advantage (and as the mitigation tank, they should).