Pld is put below because of the difference between a pld and a war when them burst,
with dps accesories War can realy make a lot of damage i would say he will do 2/3 of what a melee can do, PLD can't do damage like that. in Frontline a good pld would be certainly protect the healer, and try to stun lock focused target, (he don't have 9 sec of stun lock anymore i thing, it got nerfed), i think it's realy slight he may be need a upp in damage, since them nerf the stunlock...

i don't understand why you put monk so high and drg so low?^^.
I don't think it's the damages: i know the drg have higher burst potential than a monk/ but a monk do more damage than a drg when there is not GCD to burn, this make the drg to be the burster of the two melee class