We are also a family of 5 and found a 3 BR condo in Avon (about 1.5 miles to the BC parking/lifts). There are buses you can take, or park for about 25 a day right at the base of ski school. Our VRBO condo was spotless, had a great kitchen and washer/dryer which all came in handy. It is also cheaper to rent equipment in Avon vs. the BC resort. Our nightly rate was less than a standard hotel room would have cost inside the BC resort with vastly more room.
Both beaver creek and keystone are great for kids and ski lessons. I've been to both!
Nupe
DS1 2004
DS2 2007
I grew up in Boulder and learned to ski at Keystone. It has some great green runs and a perfect beginner chairlift and slope (used to be called Checkerboard, not sure if still called that). The ski school was great, the village was great fun with toy stores, ice skating rink, horse drawn carriages in the snow, etc. I loved it!
DD1 9 yrs old 12/2011
DD2 7 yrs old 01/2014
Winter Park. It's close to Denver and we love the ski school.