Either will be fine...the Nokian Hakkapeliitta RSi (non-studded) or Hakkapeliitta 4 (studded) or the Gislaved Nordfrost 5.
Truly, only the Finns and Swedes know about winter, in comparison with the Italians, French, Japanese, Koreans, and Americans...think about it -- they have winter 5-7 months out of the year, produce the best Pro-Rally drivers, and accept no compromises in terms of winter traction.