By Carbuncle.Grandthief 2012-03-25 06:42:08
If you like NIN enough to consider making Kikoku, I would totally go for it.
Now, I don't have experience with neither Kikoku nor Shun but on paper, as you pointed out already, Kikoku is a great weapon for DPS (without having to rely on the WS for an aftermath-like effect).
If Shun does dmg somewhere between Jin and Hi, then that would be good enough for me.
I, certainly, can't mathematically prove one to be better than the other but in most endgame situations (where things aren't EP-DC), you should highly benefit from the different WS-mod (for acc) and the additional att on the weapon at all times.
Additionally, you can still boost acc and att further with food (and meds, of course) and will always have more of them than you'd have with Hi.