Thanks for the suggestions!
I was looking at Vail, Beaver Creek, Breck, coz that is what was suggested by one of my friends, but after doing research (and embarrassingly of the same resorts and AirBnbs in Colorado) for 5 nights straight, I ended up researching other places - Telluride, Big Sky, Whistler, Lake Louise, Jackson Hole, Steamboat, Killington - and got more overwhelmed with choices. I guess the thing is...we plan on going for 5 days, but my fear is if I end up just enjoying skiing for 1 or 2 days, I want other options or activities to do - even if it is not with my friends (should they decide to ski all 5 days).