Don Reilly is great
Wapiti Sports is terrific
Dan Bell is outstanding
Monod Sports - can be great depending on which guide you get
If you're looking for lakers at Minnewanka, use Blair at Minnewanka Tours
George Tremel in Jasper is great, as is Lorne Currie. Some of the Maligne Lake Tours guides are very good too.
Time flies, when you're having rum!