Cady Hill in Stowe is fun. The town of Killington is up and coming (not the ski mtn/bike park) with a lot of help from the Killington Mountain Bike club. You can now combine the Base Camp Trails with the Sherburne Trails and Gifford Woods(Pesky Cairn) for a fun day.
Agree with this. Stowe is solid but there are some hidden connectors that are not on the map.
Actually that describes all of Vermont.