Minor corrections as I try to figure this out.. NIN auto-attack is not as weak as BRD (most likely due to BRDs low weapon damage), and a MNK with no buffs actually seems the weakest. I have MNK DRG and NIN equally geared for the most part, all have 570 attack power (solo), an with regular buffs/damage debuffs AA damage highest->lowest was DRG (250-270, HT and Dis) MNK (230-250, GL3 and DK) NIN (200-230 DE). I didn't get to check BRD w/ disembowel but AA was 170-200 at 564 attack power without it.