For those who say dagger's are OP. Ask yourself this:
Would you be happier if when your TRAINED ASSASSIN tries to cut a guys throat, instead of cutting his throat, you only yield like 50% damage, and now you have to fight him toe to toe with a pair of letter openers?
the strength of daggers lie in their sneak attack. In a straight fight daggers are a poor choice of armament (Low damage, short reach, don't benefit from one-handed enchantments)