Cooper Snow Tires are the best. I have them on both of my cars -- a Chrysler Voyager van and a Chevy Cavalier. With studs added to the van's snow tires, I have never gotten stuck anywhere even in extremely slippery snow.
The thing I like most about the Cooper snow tire is the "open tread" design which allows the tire to grip firmly in the snow with minimal loss of traction.
My son also has a Cavalier but likes to borrow my Cavalier with the Cooper snow tires when the weather is bad. I found out why once when I was driving my son's Cavalier in the snow. Even at a reduced speed of 35 mph in a 55 mph...