4.05 - Tenacity Vs Non-Tenacity Builds
Tenacity Build: http://ffxiv.ariyala.com/11OWT
Non Tenacity Build: http://ffxiv.ariyala.com/11OWO
Trade off is ~1.5% DPS for 8% Mitigation/selfheals
For PLD, I'd go with the Non-Tenacity build as they already have higher passive mitigation from block, and that build has a lot of SkS which is good for sword oath and Goring Blade Dot.
Also, Tenacity affects our selfheal which mean clemency for PLD, and that's not part of their rotation unlike WAR/DRK.
I'm going Tenacity personally :-)