Well i tested crossbow and bows much more and to tell my opinion bows right now are more OP.
Yes you can instantly kill humans with xbow if you do a head damage.
But on orc it wont work, vs goblins you need more range
But xbow has some cool options for example you can shoot, switch weapon (fast hand perk) and do attack with 2h poleam
also damage vs humans is really strong, but humans are not the strongest opponent the damn orcs are and goblins with their long range poison attacks.