Ditto Grout Pond (just watch out for those friends of Maddy's) & the Catamount... the ski in to Stratton Pond is nice (all this assumes snow, of course!).
I have been to Timber Creek, & its ok if you are looking for groomed & set track. Nice enough layout - gets some good views of Mt Snow across the valley. I like Timber Creek for when the natural snow is manky for whatever reason; the grooming will keep it usable.
Again assuming snow, a nice tour not too far from the Mt Snow area is Jamaica SP. Easy tour up along an old rr grade to the foot of Ball Mtn dam, or you can make it more challenging with a side trip up to Hamilton Falls.
amf