We traveled thru BC last summer going West from Banff. Our route took us from Banff to Kelowna on to Surrey. We actually stayed in Canmore just outside Banff. Parked RV and toured in Toad. Super sightseeing north of Banff all the way to Edmonton. You'll need some time in this area to see Lake Louise, Ice Fields, etc. Just a great area.
We also stayed a week in Kelowna. We stayed on a farm (Orchard Hill) with a great site overlooking the Ocanagan Valley. Highly recommend this park on a small farm. Beautiful private full hook-up sites. Lots of orchards, and other interesting sites. Huge lake with floating bridge, several nice museums, parks, etc.
We entered Canada from Glacier National Park. Good place to enter U.S. with lots to see before you reach Wisconsin; Rapid City SD for Rushmore and other great sites, Yellowstone, Salt Lake, and many others.
Have a great trip. BC is a great place.