Since many people tend to prefer a WAR over a PLD, primarily due to their inately higher damage, I believe an ability that temporarily increases the physical/magical damage output (Morale) of all party members would be perfect (since all of the paladin's most useful survival/hate holding abilities are aultruistic; PLD is all about helping the party and sacrificing self). And to prevent the repercussions of increased party damage output on hate control, this ability would also provide a small group hate transfer to the paladin for the duration of the ability.

For example, a 15%-25% physical/magical damage output increase and a ~10% hate transfer from each party member for 10-20 seconds. This would be on at minimum a 1 minute cooldown. Note that this ability would not increase the user's damage or modifiy the hate from the pld's abilities/attacks**.

I believe this to be a decent means to repairing PLD's desirability within a party without the need to destroy warrior's damage per second.