Riding across Canada and or the US. Is one of those things which has been on my to do list for a very long time.
You are right the middle doesn't really appeal to me. Really don't know what to see on the way. Or which route to take. Trans Canada? most likely
So Far. The furthest East I have made it is Edmonton. Great all the way to Jasper. and even a bit further. As the mountains turn to hills. The Road straightened out and you can see it dead ahead popping up on the horizon. Its not quite flat By Edmonton but its cold windy and a bit dull.
There are spots in Alberta I would like to see, Buffalo jump ect.
I have been to the east, Quebec, Montreal, Niagra, The lakes even Thunder Bay. I really liked my short visit to Halifax. Algonquin is meant to be spectacular at least it was in Last of The Mohicans.
Edmonton to Thunder Bay? one day maybe, Why, because its there.
The US.
I've been to Alaska. Highly recommend. It's amazing. very few roads to choose.. South LA. I like the coast. And the big parks Yellowstone Grand Canyon ect.
R 66 ect. Not really on my list. Popular if you like tacky tourist stuff. not sure if id be interested. Appears to be a lot of long, flat, hot, interstate until you get out west.
Still be interested to hear how it works out.