Okay, I'll chime in as I ski Tahoe regularly (have a cabin in Truckee, grew up in SF Bay Area) and have skied Colo frequently (5 times for 3-5 days each time) and have skied Utah, JH, Sun Valley, Bachelor, and Whistler.
I cannot comment on Park City or Deer Valley as I tend to ski with boarders (DV is one of 4 resorts in North America that doesn't allow boarding). I can comment on Cottonwood Canyon area. The snow is awesome. But the skiing tends to lean more toward ungroomed off-piste.
In terms of Tahoe, if you want to ski in/ski out, then Heavenly is your best option. Though you can also get slopeside accomodations at Squaw (Squaw Creek has their own lift that shoots you right into Squaw proper). Heavenly and Squaw are perhaps the most "destination" oriented resorts in Tahoe, although Northstar has just spent a bundle building a village.
There is also Whistler, outside of Vancouver, B.C., which I believe has the most skiable acreage in North America (bigger than any of the ones listed in previous posts, if I'm not mistaken). You can get cheap accomdations that allow you to ski in/ski out. My dad and I did a week there several years ago and it was only about $600 for lodging, lift tix, and the flight up there.
All of that said, my bet would be on Colorado, though. You can get the best of both worlds. Sounds like Vail would be up your alley. You can ski in/ski out there. If it doesn't suit you then you have a short drive to many other great resorts such as Breckinridge, Keystone, Beaver Creek. Though I've never skied there, my friends enjoy Aspen, since it has two mountains to choose from.
As for your remarks about no queues and no crowds here in the U.S.? I would REALLY love to know where you are skiing. There's always crowds and queues (what we would call lift lines) at all of the resorts, unless you go mid-week or manage to ski during a storm. I've found the smallest amounts of crowds only during the end of the season and close to closing day at the bigger resorts. Of course then you're dealing with debateable snow conditions, as well.
Anyway, in short, I would shoot for Colorado. When I skied there last April with my dad, I kept running into tons of Brits. They said it was actually cheaper for them to come to Colo than to go to France/Europe.