Hi Bekks, I have lived in Canmore for a long time and now in Rossland. The powder skiing is way better in the Koots but the ski mountaineering is far superior in the Rockies. The Koots doesn't have the big alpine terrain, awesome ridge climbs and scenery that the Rockies has. That being said, colder temps and the continental snowpack can make for more challenging conditions and the powder is harder to find in the Rockies. There are some amazing ski tours and ascents in the Rockies (Andromeda, Columbia, Hector, Victoria, Resplendent, etc etc). Check out Chic Scott's guide books on touring and ski mountaineering in the Rockies. There are endless opportunities there and a much longer season (I have had some very good ski days in early november and late may there). In an ideal world you would ski the Koots until end of march and then ski mountaineer in the Rockies for april and may. However, all being said, can't beat the BC pow!