Always enjoyed Breckenridge with my kids. You can rent a car or just take one of the many van services. Always stayed right on the peaks and they had a shuttle around town or you could just walk for dinner. If you need more skiing you can always head over to Keystone for a night run. We always took a day or half day off and went snowmobiles, x-country skiing dog sledding whatever you like for a breather. Was always a great vacation, great skiing, instructors, food and plenty to do!