Hint for the really practical: an MTB frame usually has great clearance, better brakes than sidepulls, rugged, expendable, etc. Perfect for a winter bike.
+1 onthe MTB I rode an older Giant Iguana last winter. This year it is getting either Drop or Moustache bars and Plastic fenders. Putting smaller tires added plenty of room for fenders and the frame and compoents are bomb proof....bring on the potholes!