COR roll looks bad on paper, but because we usually don't get the full benefit of the other rolls it's actaully pretty competitive for best roll.
Once @ meripo level, if your merit pty is'nt getting constant chains until sum1 KO's, goes afk, or after 2hours+ when ppl start to get lazy, then its not a proper meripo, so @ merit level, Corsair's roll is kinda standard. Once the cor is merited, 10/10 T2 merits really helps the COR with rolling lucky's 10's & 11's, so the gain from Corsair's roll is to ITG.
Hunters is almost completely wasted.
Chaos is decentish for SAM (increases melee but doesn't really help WS in merits), but amazing for DRK/DRG/1h/raging rush
yeah, hunters roll for good sam's is more or less wasted, Chaos roll is excellant for Soboro, and excellant for Hagun too once @ high haste. For ws, its obviously doing nothing @ merit level, but on HNM type mobs, its obviously a nice alround buff for tp/ws.
DA is good for gaining tp, but isn't particularly good for SAM WS either due to 1hit + highish fTP nature.
Its good for TP and for WS. I'm not a big fan of the roll, but I'd rather have Fighter's in high haste situations then stp. I think your wrong with DA not being particulary good for Y/G/K however...
WS @ 140STR @ 100% TP with Soboro, forgettin cratio (as it is 100% not needed)
(40 + 12 + 87) * 1.5625 = 217
WS @ 140STR @ 100% TP with Hagun forgettin cratio
(75 + 16 + 87) * 1.875 = 333
If a DA procs on either (added number is just the WS + fSTR + WSC for those that don't know, DA procs only have 1.0 ftp)...
Soboro: 217 + 139 = 356 (64% dmg increase)
Hagun: 333 + 178 = 511 (53% dmg increase)
a DA proc is worth more than the martial bonus itself @100%tp 'if one procs'. Unfortunatly, it doesn't show the whole picture, because a DA actually has to go off for the huge dmg increase to occur. Then ofc, theres those times when you get the 1% tp returns, where you've actually missed the main part of the ws, but hit the DA (its that, that should take ws% above 95% when parsing in meripo's).
Again, in meripo's, a good cor should be giving 15% roll10, 18% roll'lucky, 24% roll'11 (With a WAR in pty, Fighters roll w/o a WAR in pty is 'P A N T S')
For a SAM/DRG w/Brutal, rolling lucky, 10 or 11, Fighters roll is a 14.2% - 22.9% DoT incease
For SAM/WAR w/Brutal, Fighter's roll should be a 13% - 20.9% DoT increase. Conclusion then, that Fighters roll favours /DRG, favours Soboro's ws's, favours Hagun's DoT.
Need sum1 to compare those numbers, to Chaos roll with and w/o a drk in pty, as the roll is primarily used roll whether drk is presant or not. I got my roll %'s from wiki.