Truth be told I hated my focus in snow. We had a terrible dumping of 12 inches of thick white crap. Obviously any car would have a hard time, but even afterwards the slush it left behind made driving terrible.
My answer: Winter tires. I picked up a set of Michelin xIce i3's on steelies over Christmas. It's like night and day. Now bombing around in slush, freezing rain, snow, whatever is fine. They're also a touch quieter than my factory 17's.
Now if only the dealer would get my block heater fixed.