+1 on Wilcox Pass. It is the best/fastest way to get amazing views (on foot) in the Canadian Rockies. Nearest CG is Wilcox pass, and you can walk from the CG to the trailhead. The CG is hard to access with a trailer, but perfect for a FWC. Mid-week getting in should not be a problem. We've gotten in on the Friday of a long weekend!
In Banff, the Mt Fairview/Saddleback hike puts you up high and only 1500' or so lower than the top of Mt Temple from a short distance away from that classic peak. The views from there of the peak and down to Lake Louise are spectacular.
If you can stomach a bus shuttle up to Morraine Lake, the environs there are very photogenic! Canoes can be rented too, and paddling on the lake gets you views you can only ever get in the winter from the middle of that lake)
Down low, check out the walks in Johnson's Canyon. This is very touristy at the beginning, but you can hike a long ways through the trees to the "ink pots" or natural springs and be very much alone on that section of the trail.
As Iowa pointed out above, the Sulphur Mtn gondola in the Banff townsite gets you up there to see some great views without any effort. You can hike up and take the gondola down too, if that's more inline with your fitness/time allowances.
At Lake Louise, consider skipping the Lake Anges/Tea House hike (Also very good, but lots of people) and hike up to the Plain of the 6 Glaciers. This gets you up close to Victoria and the surrounding peaks.
I'd suggest getting a campsite at Waterfowl Lakes. Several good hikes can be done from close to there (Bow Pass is great) and paddling on the two lakes is relaxing and VERY scenic.
In Jasper, check out the Bald Hills hike (seeing Maligne lake is worth the drive) or go to the Miette Hot Springs after scaling the Sulphur Skyline.
The gondola up the to the Whistler's restaurant in Jasper can be fun, especially if you want to day hike from way up there.
In Jasper as well, a trip to Mt Edith Cavell and the Cavell meadows is worthwhile.
Mt Robson is close by, and I could spend a week there (and have many times) but the hikes are longer.
I recommend the guide book "Don't wast your time in the Canadian Rockies" by the Copeland's. VERY good, and usually right on target.
If you are driving through Calgary, we could give you a parking spot on our lawn, and a soak in the hot tub for a night or two!
Vic