WhatTheHuckNot sure your age but drinking age should be a factor if you're under 21
Unless you're rich you probably can't afford to drink at the bars in canada anyway. Not sure if the prices are similar across the country but in ontario at least the prices are insane. Something like $24 for a 12 pack of pbr. It cost me like $37 bucks to get myself drunk. Ended up getting a bottle of wine at the end because my friends drank a few of my pbrs so my $24 was not getting me drunk.
I'd go for the snow though. I prefer house parties in a lot of ski towns to the bars anyway. That said I'll go to bars if there's a decent bar scene here and there with friends.
It's not like you can't drink if you're under 21 and the skiing matters the most.