Here's my 2 cents; I never got the Canyons. I've tried, God knows I've tried... wierd, short ,double fall lines off 9990, all that fabulous terrain on the wrong side of the rope. Maybe I never hit it on "the day". I have expert friends that swear by it, and I think that's the key. If you're an intermediate it's got lousy grooming,(being bankrupt) narrow trails, and a far flung annoying layout that's more concerned with serving slopeside mansions than serving skiers. Add the distant parking lot, the people mover and the three block schlep to the lift in ski boots so you pass all the shops...but people do like this place...
Deer Valley is underated as a skier's mountain. It's a townie's favorite and a lot of our townie's are current and x-U.S. ski team. I've been there a lot lately because they have the best kid's program. Best kids program anywhere, for that matter. But it's layout is really good- lots of skiing for everyone at all levels. The trees were amazing last Sunday- everything was. It was either powder or perfect groomers, lots of variety, and with Empire, Lady Morgan, and Sultan lifts plenty of expert terrain. Girls dig Deer Valley for the food and the class.
My personal favorite is PCMR , outside of LCC. The groomers are vast and wide, so your intermediates can ski safely and in their comfort zone, or you can do what I do; wait until the run is empty (and unless it's Christmas week, that's most of the time) and just mach it. The development is limited to the base, so you get up and away into nature a bit. Jupiter bowl can be like a miniature Alta, and the new Crescent lift opens up a lot of new territory on the frontside that the locals used to hike/traverse to on a powder day (sigh).
My recommendation is to park at the Eagle lift at the bottom of the lot, ski the King Con area, especially Shamus and Sitka, as a warm up, and then spread out over the mountain. After lunch, or on non peak weeks there's usually parking spaces next to the lift.
Bottom line, though, is you can't go wrong at any of them, even Crayons.