I've skied both, Walls are mid-stiff, Anthems are soft. Anthems also have the wider waist so they can handle some pow. And, since they're soft, they're fun to play around with on groomers. Personally, I'd go with the Anthems, it's such a fun ski no matter where you are. But, if you want a stiffer ski than go with the Wall, its still a dope ski.
well i usually hit groomers up for the first hour in the morning cause there is rarely pow in ontario then when it gets busy i go into the park and when i get sick of the park i go jib in the trees. I will be going to whistler for a week this year so what ski do you think would benefit there?