I think estimating guys who´d never driven a 4WD is not reallly serious, even if they are talented we should talk about documently fast youngsters IN 4WD. Because they are going into a team with 4WD cars only, right?
I know among those two or three we have clearly Pontus Tidemand. His abilities of being an asset in developing a new WRC-car is not known as well as it isn´t for anyone of the current youngsters.