Kamloops to Highway #16 is a nice flat drive and yes it is a little boring if you have done it many times.( First time would be great though)
Depending on which way you are going after that, if you go west on #16 and up the Stewart Cassair to Alaska. There are many nice sites, towns and villages along #16. (a side trip to Fort St James north of Vanderhoof is nice if you are interested in that). The route east through Mount Robson, Jasper and then north from Hinton through Grande Cache and Grande Prairie and on to Dawson Creek and the start of the Alaska Highway is also a nice route. (Particularly the Mount Robson and Jasper areas, very nice provincial park campground at Mount Robson)
As suggested going up the Iceway from Lake Louise to Jasper is also quite nice with only one hard climb near the icefields.