Forged wheels are only for those with deep pocketsIf using cast wheels in the winter I would go at least with forged wheels. They would have a better chance of surviving a severe pothole than a basic cast aluminum wheel.
The OE/OEM cast aluminum wheels are generally good for winter wheels. Those wheels usually weigh around 25-30 lb. ea. The use of high-profile winter tires will give extra cushion to absorb the impact when hitting potholes. Last but not least, they give a comfortable ride.