Quote Originally Posted by northernsky View Post
If I remember well, enmity is only increasing through a fight (except the few abilities that lower it), so it's basically a race of who accumulates enmity the fastest.

If enmity was actually lost as damage is taken, that would give a fairly significant boost to PLD over WAR due to higher damage mitigation, because warrior would have to sustain higher damage output to compensate for enmity loss to damage taken.

Abilities, materia and gear that promote damage mitigation for PLD would therefore have an additional enmity+ value. That would not increase DPS, but increasing damage mitigation would be twice as useful for PLD, thus improving the two main aspects of a tank; survivability and ability to hold hate
This is by far the easiest way to balance defensive tanks with offensive tanks. The offensive tank (war) will be spike enmity (gain fast, loose fast), while the defensive tank (PLD) will be a slow gain but have more steady enmity levels.

However, even with this, PLD is best used when melees are used.