^^^ THIS. Exactly. Alta is very high, gets lots of snow almost every year, and is stunningly beautiful. And Snowbird is attached, and it has some of the most playful skiing in N. America.
But golly Banff/Lake Louise looks gorgeous too...but I've never been there. After that I'd look at Aspen, where even if the snow is weak the scenery is...well, that's why it's the priciest land in the U.S.
Bit of a digression from the OPs question but...Alta and Aspen don't rank for me in terms of best scenery. Not like they are ugly, but there are many prettier places than those. Banff, on the other hand, is off the charts. And Whistler is beautiful. If this matters to the OP.