Hey, hotshot, you have to be a bit careful... I don't know your history (maybe you grew up skiing Alaska-size steeps, but I guess not). Big western mountains are not Jersey, the conditions are also not always like what you had in your GoPro videos. It does take more than ability to make turns to ski some of the marquee terrain at some of those resorts and I, unfortunately, know people who had sustained serious injuries inbounds (and those people were and are way better skiers than you).
If you go on your quest for hardest terrain, please make sure you look at the runs both from the top AND from the bottom, assess conditions, look for hidden ice patches, etc, and most I'm portent be realistic about your abilities. Also accept that some of that terrain is unskiable by anyone expect a few phenomenal athletes in good snow conditions (and you are not one of those athletes). Sure, Travis Ganong skied the High Line on McConkey's at Squaw in bad snow, but the guy is on a US Ski Team and has run Kitzbuhel downhill. Believe it or not, the terrain opening policy in the West is quite liberal, so it is very easy to get yourself into a situation where there are no good exits and a lot of the times those excursions do not end well.
Resorts: Squaw, Jackson, Snowbird, and Crested Butte would have plenty of challenge for you. All seem to have great snow year this season, but a lot of that snow came after Christmas. Typically Christmas time or weekends is not when the most extreme terrain gets opened. Squaw for example keeps Palisades close during the holidays because, sadly, they are afraid exactly of the visitors like you: warriors from flat urban places looking for thrills and ways to bag famous runs (the technical explanation is that they want to protect the traverse under the 'Sades rom high-speed run-outs).