Agents Available 7am-6pm MST Call 800-908-5000Español Marque 800-359-0747
You can check out the reviews of some of the places you're considering at http://www.familyskiresorts.net.
Of the 3 you mention, you really have some good choices. Pretty comparable slopes, I'd go with where the cheapest lodging is.
Also, don't forget alternate resorts like Gunnison. Could save big bucks, plus still drive to Vail for a day.
The BeeS,
You guys should consider putting on a little extra hairspray so that you can make it all the way out to Park City! I swear the snow in Wasatch is way better than Colorado's, which is patchy at best. So leave your rock skiis at home and pack an extra pair of camo coveralls cause' we're headin' to Utah. While your'e there make sure to check out some bars, it's really entertaining for the locals.