There are many places to choose from, depending on level of accomodations you desire. Last year I stayed at the Beaver Pond B & B
- it was a nicely renovated farmhouse, very clean, great food, and nice hosts. Would definitely recommend it if that's the type of thing you're looking for.
I've also stayed at the Sugar Lodge
a while back. It was a basic hotel room-type lodge, but the website indicates it was recently renovated. The Sugarbush Inn runs ski & stay packages, and you can occasionaly get a last minute deals.
The resort also has condos that they rent, call 800-53-SUGAR for central reservations.