i boarded whistler/blackcomb during the end of christmas- new years 2 years ago. pretty average snow on the bottom 1/3 of the mountain, but it sooo massive compared to our slopes here in australia.
i stayed in whistler, obviouslly thats more expensive, maybe stay in vancouver or something.
also, make sure u do the glacier run. u take like 7 forms of lifts to the top, trek up a hill, cross a little cliff, then board this huge bowl full of powder it was unreal!! then it takes about an hour to get back to the bottom!