Which is best.....deer valley, park city, the canyons?

I would say best, most well rounded would be PC.  The park is mega fun, and there is some really fun tree skiing and bowls and small cliffs off of McConkeys or Jupiter.  And the parks are great.  If it snows a lot and you're in PC go to the Canyons.  They have the best powder skiing in the area.  Don't really go to Deer Valley.  I hear the new lift accesses some great stuff, and no one else ever skis it because they're too stoked on the groomers, but it's expensive, and you can find much better at Canyons. 

Sunny/overcast with a few inches of fresh = PC
Dumping or lots of fresh snow - Canyons. 
Alta/Bird are always fun but get tracked way fast, and take awhile to get to from PC.

the park at park city is the shit

the canyons has the most steep /good freeride terrain (although it cant tough the cottonwoods) pcmr has good terrain but on pow days it can be a bitch since jup chair is a doubble and is easliy delayed...skip dear valley

Unless you r going out west to ski good parks, you should go to the canyons, lots of fun stuff off peak 5 chair and ninety nine ninety chair. If you r a park skier then you should go to PC their parks are amazing, so it really just depends on what u r looking for. If you cand rive up to little cottonwood, then definetly hit up Alta and Snowbird. Although the canyons has great terrain, little cottonwood is amazing for steeps and great snow

if you aren't looking for a good park, go to the canyons. i have been there twice and it was sick both times. really fun terrain and its huge. 99-90 is sick and hiking like 100 feet up can give you access to a pretty nice bowl. ive never been to pc but obviously they have a sick park. dont go to deer valley. its faggy

all the worst.

solitude, snowbasin, alta, or the bird.