I don't believe PLD's need a potency/enmity buff on their single target tanking. As the classes are right now, any slightly major changes would give the other an overall edge and offset the wonderful balance the two classes enjoy with each other. CoS and Spw each give a 12.30% increase in total WpnSkill DPS. A warrior really only pulls ahead very very very slightly, because of Unchained. As a trade off a PLD gets a shield which I believe is a fair and balanced trade off for the sake of differences between classes.
Some maths to back my opinion:
Notes:
-Assuming GCD is at 2.5.
-Not countining Berserk, Unchained, Flight or Fight, and Auto-attacks.
-Storm's Eye Only lasts 2 Full rotations therefore in a SP, BB, BB does not apply for the SP combo.
-Sword Oath gives a 50 potency to your auto attacks which is roughly every 2.5 secs for a PLD (Purely eye tested). For this calculation, it is essentially a +50 potency to all GCD Weapon Skills.
-Berserk and Flight or Flight are almost similiar so their application wouldn't change much. FoF is something like a 10% total increase and Berserk a few decimal points lower because of the pacification.
-Unchained would push the WAR totals(ones with stance calculations naturally) slightly further (like no more than 3000 for damage potencies and like, 13000 for the hate potencies) purely from common sense, putting them slightly ahead.
Over 300 seconds or 40 GCD's (perfect alignment of Brutal Swing, Circle of Scorn and Spirits Within)
Formula:
(((WpnSkl*Stance)*Maim)*StrmEye)*Times Used
WAR:
Pure BB
(630*0.75)*40 = 18900
with Brutal Swing: + (100*0.75)*15 or 1125 = 20025
Maim
SP,BB,BB
(((590*0.75)*1.2)*14) + (((630*0.75)*1.2)*26) = 22176
with M. Brutal Swing: + ((100*0.75)*1.2)*15 or 1350 = 23526
Maim and Storm's Eye
SE,BB,BB
(((610*0.75)*1.2)*14) + ((((630*0.75)*1.2)*1.1)*26) = 23902.2
with M. S. Brutal Swing: + ((((100*0.75)*1.2)*1.1)*15) = 25387.2
PLD:
ROH: (610*0.8)*40 = 19520
with Circle of Scorn: + (250*0.8)*12 or 2400 = 21920
with Spirits Within: + (300*0.8)*10 or 2400 = 21920
with Both: + (250*0.8)*12 + (300*0.8)*10 or 4800 = 24320
Storm's Eye
ROH: ((610*0.8)*1.1)*40 = 21472
with Circle of Scorn: + ((250*0.8)*1.1)*12 = 24112
with Spirits Within: + ((300*0.8)*1.1)*10 = 24112
with Both: + ((250*0.8)*1.1)*12 + ((300*0.8)*1.1)*10= 26752
Without Stances for you OT DPS junkies.
WAR
Pure BB
630*40 = 25200
with Brutal Swing: + 100*15 = 26700
Maim
WAR:
SP,BB,BB
((590*1.2)*14) + ((630*1.2)*26) = 29568
with M. Brutal Swing: + ((100*1.2)*15) = 31368
Maim and Storm's Eye
SE,BB,BB
((610*1.2)*14) + (((630*1.2)*1.1)*26) = 32894.4
with M. S. Brutal Swing: + (((100*1.2)*1.1)*15) = 34874.4
SE,BB
(((610*1.2)*1.1)*20) + (((630*1.2)*1.1)*20) = 32736
with M. S. Brutal Swing: + (((100*1.2)*1.1)*15) = 34716
PLD:
ROH: 760*40 = 30400
with Circle of Scorn: + 250*12 = 33400
with Spirits Within: + 300*10 = 33400
with Both: + (250*12) + (300*10) = 36400
Storm's Eye
ROH: (760*1.1)*40 = 33440
with Circle of Scorn: + (250*1.1)*12 = 36740
with Spirits Within: + (300*1.1)*10 = 36740
with Both: + (250*1.1)*12 + (300*1.1)*10 = 40040
Hate Potency
Formula:
((((WpnSkl*Stance)*Maim)*StrmEye)*Enimity Modifier)*Times used
WAR
BB = 168.75 + 675 + 1575 = 2418.75
Maim BB = 202.5 + 810 + 1890 = 2902.5
Maim Eye BB = 222.75 + 891 + 2079 = 3192.75
Maim SP = 202.5 + 256.5 + 337.5 = 796.5
Maaim SE = 202.5 + 256.5 + 364.5 = 823.5
Brutal Swing = 112.5
Maim Brutal Swing = 135
Maim Eye Brutal Swing = 148.5
Over 300 seconds or 40 GCD's
Pure BB = 2418.75*40 = 96750
with Brutal Swing = + (112.5*15) or 1687.5
Total Hate Potency: 98437.5
SP>BB>BB = (796.5*14) + (2902.5*26) = 86616
with M. Brutal Swing = + (135*15) or 2025
Total Hate Potency: 88641
SE>BB>BB = (823.5*14) + (3192.75*26) = 94540.5
with M. E. Brutal Swing = + (148.5*15) or 2227.5
Total Hate Potency: 96768
PLD
ROH 180 + 720 + 1560 = 2460
COS (250*0.8)*1.5 = 300
SpW (300*0.8)*1.5 = 360
PLD Storm's Eye
ROH 198 + 792 + 1716 = 2706
COS 330
SpW 396
Over 300 seconds or 40 GCD's
ROH 2460*40 = 98400
COS 300*12 = 3600
SpW 360*10 = 3600
Total Hate Potency: 105600
+Storm's Eye
2706*40 = 108240
330*12 = 3960
360*10 = 3960
Total Hate Potency: 116160
I don't know the spoiler code ;-;