Last year, I would have said Canyons. People saying that it takes so long to get around must be skiing too slow, because besides the fact it sucks to ride the Cabriolet from the parking lot to the lodge, that's never even crossed my mind. The park USED to be awesome, with a more relaxed vibe than PC.
However, this year, they moved the park and did some other dumb shit, the park crew weren't up to snuff on keeping the park legit, it was pretty stupid. I'm glad it was such a good year for snow, I would have been pissed trying to ride park there all year.
PC was more consistently built well, people were mad at them for not switching stuff up and building a big park that was worth shit. Granted, the small jumps were as big as Canyon's big jumps. So they still win.
I would rather ride Canyons on a Pow day over PC, but in general if there's snow I'm going to be at Alta.