speaking biologically they wouldn't be “bad” weapons. Wolverine just uses them wrong. if we look at the bone claws, which are his original claws, like a biological adaptation their use is really clear. read more
Wolverine's claws are dependent on his healing factor to be a truly effective weapon. The advantage of edged weapons in combat is the flexibility and variability of angle. With a sword it's possible to change the angle of attack or use it as a defensive shield just by angling it differently. This isn't possible with Wolverine's claws. read more