Originally Posted by
Demitrius
If you're /NIN, offhand speed and stats, not damage. Blau is probably the best mainhand just because of the huge attack increase, unless you can get your hands on a P. Harpe. Some good offhands are Misericorde (+1), Sirocco Kukri, Garuda's Dagger.... I'd go with the Mis +1 personally, as it still has the base damage to keep your DoT up without ganking your attack speed.
If you can't afford Blau mainhand, go with Harpe. In the mainhand it's all about damage. Offhand doesn't matter nearly as much because it doesn't really impact WS damage.