Good responses; no amount of technology is a substitute for KNOWING HOW TO DRIVE. These gadgets will not do the thinking for you. If you rely on them you will end up in the ditch or in an accident, as testified by the many $50,000 hi tech SUVs in the ditch after a snow storm.
Take a winter driving course from the AAA or similar organization. My whole familiy has done that since we have 5 months of winter here.
Personally I prefer no ABS, Traction Control or Stability Control.