Onisake: Thing is, healing has reduced enmity generation in relation to damage (x0.6, if memory serves me well) and the enmity generate by healing is also spread by all targets on whose hate list you currently are on.

Also yes, PLD DPS is pretty bad but it's enmity combos are based off the damage they deal (Was it... x5.5 for Flat Blade and x3.5 for Spirits Within? With SW being actually about as powerful as Riot Blade) so dealing more damage MAY be prefferable. At this point it starts to become a personal issue, I think.