I recently have been try a different approach which is working well so far - diving gloves!
But what protection would they give if you have an Off?
Bike glove give just about no protection when you fall off - the palm leather is usually wafer thin . The armouron the knucles and fingers is for FOD hitting your pinkies when holding the bars.
The dive gloves are either 3mm or 5mm crushed neoprene which is tough as old boots and it gives quite a bit of padding over the knuckles . I think they would give better protection when sliding down the road
Priority for me in winter gloves is comfort and functionality (easy to get on and off) over road rash protection .
I don't wear them as under gloves - that would defeat the point of wearing an unlined single layer glove , that is what makes them so user friendly !