PLD is just boring

[Jandor]

I think only applying the oaths costs and interrupts, you can drop shield oath for free if you want a cheap and nasty damage boost.

Edit: I liked that idea about abilities having different additional effects under the oaths. Shield Swipe could get a small AoE cone effect, Tempered Will grants surecast, successfully blocking while under Bulwark does a 100 potency auto-attack, other ideas shamelessly stolen from around the tank sub-forum.
Sword oath is a bit tougher, maybe make Spirits Within do more damage the less health you have by default and Sword oath reverses it back to how it is now. The extra auto-attack damage is deceptively strong and PLD OT DPS isn't that bad really, I don't think suggestions that would encourage Sword being used while MTing are really going to gain much traction with SE.

Edit 2: I also don't see how the job is a mess or terrible, simple sure, boring maybe. But those are like the opposite of mess & terrible.