Sleet and snow driving require plenty of weight on one set of driving wheels, so you would assume that front-drive would be best suited for sleet and snow driving. However, it is not necessarily the case. In front-drive, the bulk of your car’s weight is over the wheels that are not only driving the vehicle, but also turning it. And, since the car, by its very construction, is nose heavy, it will tend towards terminal understeer. (It will always try to go straight and fight you on turns that can become nasty skids.) So, while it may seem like front-drive is the ticket for sleet and snow, rear-drive where you can do perform driving with the rear wheels is the better solution.
For more info, see What are the Safest Cars to Drive Depending on Terrain