I still don't have my Armageddon, so in the meantime I'm using an MAB Mayhem and a 10% WS damage Anarchy.
The mayhem is for Aby where going /RDM and stacking MAB and AGI is easy, making QD/LS builds quite nice.
The Anarchy is for stuff outside of Aby (limbus, einherjar, nyzul, dynamis). Here QD and leaden salute are not as powerful and a good melee TP/Slug build will outdamage most other setups. Adding 10% to a 2k slug is 200 damage. Not many other ways to boost that WS by that amount (although I suspect the STR/RATT Mayhem might be close).
Haven't done much WoE and no voidwatch to date so I'm not sure how those guns stack up in that setting. Been working hard on the Armageddon with a group before wandering into those actvities.
Would WS dmg+10% or TP+100 anarchy actually beat MAB mayhem for Leaden salute in Abyssea? If average LS dmg is 3k+ in Abyssea, WS dmg+10% adds another 300+ dmg, which is quite a lot, although I'm not sure if it beats MAB+10. Also note that TP+100 gun can also boost Leaden Salute dmg considerably, I was able to hit 3.3k in Abby with martial gun(TP bonus gun) without weather bonus/temp/roll. Although I'm not sure if TP+100 or dmg+10% is better or worse than MAB+10.
Personally I don't see much point in STR/rattk path. COR has very high WS frequency with save TP+regain roll, so it gains very little benefit from rattk+ during TP phrase. It really only benefits you when you use slug shot, then you may as well do Anarchy for Slug shot. Either 1) TP+100 Anarchy, which IMO better for harder content like Voidwatch if you're using slug since you gain TP so fast without shooting any bullets that high delay doesn't matter, and racc bonus when you WS is always important for higher lv content. Or 2) WS dmg+10% Anarchy, which is better in easier content like limbus/einherjar/nyzul etc.
And quite possibly use MAB mayhem for LS if you're doing Voidwatch outside of Abyssea, or when you do Dyna with elemental Obi equipped. Edited, Oct 7th 2011 9:05pm by Afania