Healers: Your heals are NOT more effective on WARs than they are on PLDs.

[Kal-El]

If you are taking 1k damage or more then its something like a mountain buster. In this case WAR is a better tank because of Storms Eye and Inner Beast which will reduce the MB by 30% where a PLD will only reduce it by 20%

I didn't realise a PLD's CDs couldn't be used for mountain buster?

Wish people would stop making arguments like "Aww yeah if I used all these skills and you didn't use any then I'd be better". There is no "Better tank". Only better players and if you're not gonna use CDs on MB as a PLD then sadly you're not one of these.