My commute is from a close by neighborhood in the city into downtown - all slushy mostly plowed and heavily salted roads, then a mile out in the burbs that includes a park path that is sometimes covered in 6" of fresh snow. I have an On One Pompetamine - basically a SS Disc CX bike. So I need something that will push out the slush but also has a little tread for heavier snow. And a 32mm max size. I would go with a lightly knobby CX tire, but I have heard that CX tires don't typically have the puncture resistance of the urban/commuting tires which is very important to me. I think the marathon hs 420 would be good, but I would like something with a little deeper/more knobby tread with the same puncture protection. The Marathon Mondial or Conti Winter II would be perfect if they made them in a 32.