Just back from an 11,000 mile trip to Alaska and back with my coach - a '99 23 foot Safari - in tow. I got my brother (aka "Bubba") to accompany me, since neither the DW nor anyone else was crazy enough to be cooped up with me for that long.
We went into Canada from Minnesota, across Canada via the Trans-Canada Highway, then north through Banff, Jasper, etc. and up the Alaska Highway. After touring a bit of Alaska, came back south via the Cassiar Highway, then through Washington and east across I-80.
There's a more-or-less-daily blog about the outing. It describes some of the sights and issues we encountered, with lots of photos. It was written mostly so family / friends would know where we were and what we were up to, but it may be useful / informative to the A/S community. I'm still adding to it. The blog is here: Goin'UpNorth
This was my sixth trip to Alaska; every time I go I like it more. I can't say if it's the beautiful scenery, the sparseness of people, or the prevalence of wildlife, but it's just a terrific trip. If I can provide specifics to anyone, please don't hesitate to ask or to PM me. Then hitch up and go!