I just came back from my first time boarding on Whistler (Blackcombe, actually). It was awesome. We started at 8 am, so there was few people there. Enormous amount of runs to choose from for riders of all skill levels. I'm now getting pretty comfortable with blues (though I still fall, but not like before), and I also happened to find the runs more forgivable than other places, in that if you feel you're about to bail, you can manage to recover. There was plenty of nice pow at the top, just avoid the bottom half if you can as it was mostly ice (and for beginners, there are greens way up high, too). It was a blast.
For those looking to go, the best thing to do is get the Edge Card, BEFORE Dec 1st. 50 bucks for a lift pass instead of 80, and you get 10% off clothes in the stores. The savings on the lift passes alone are just worth it.