None of the hotels in Verbier are ski in / ski out - so it is better to look for a hotel based on other criteria. For location, look for a hotel that is close to the ski lifts or bus stops (to avoid walking the hills in ski boots) or close to the nightlife (so that you can get home after the ski bus stops running in the evenings.)
Star Rating
The Swiss system of 1-5 stars looks very similar to the international standard, but in reality might not live up to your expectations. Price is a better guide...