Thoughts on To Hit and Damage rolls

To Hit rolls are binary, you hit or you do not. Yes you might have critical hits and fumbles but there is a lot of wiggle-room there that nearly every game just discards. Rolling a 19 and adding all bonuses resulting in hitting easily is no different than getting the exact number required to hit. So I was wondering how practical it would be to take that number (the amount above required to hit) and add that to the weapon damage.

This might be lethal at low level, but then DCs and ACs should make it harder to hit and thus there will be less overflow to add to damage.

I also think it would work particularly well in any game that uses Armor Points that absorb damage instead of AC.

Okay, its a bit of extra math but hardly difficult math. Also if you went with straight weapon damage instead of a roll you could reduce things to a single roll.