The field: There is Canada and the U.S., and then the rest of the world. After the U.S. won the first women's hockey gold in Nagano in 1998, defeating Canada in the gold-medal game, Canada reeled off the next three. The rivalry is so intense that the teams brawled in two of their pre-Olympic tune-up games. If the teams don't meet for the gold, it will be a monumental upset. Those with the best chances to pull it off are Finland, Russia and Sweden. U.S. chances to medal: As good as it gets. It would take a couple of major upsets for the U.S. to leave empty-handed.