The people voting for Idaho in this thing either haven't been there or think it's all like the SE corner. Pretty much everything north of Boise is pretty nice. The drive from Boise to Lewiston along the Salmon River is cool.
You also have Hell's Canyon along the Snake River
In the north panhandle, you also have places like
Pend Oreille Lake and the Selkirk Mountains.
Also, they haven't heard of Sun Valley?
Also, Nevada is pretty dark in the "Worst Scenery" poll. last April, we drove straight north from Las Vegas to Twin Falls, ID and I was very surprised at the scenery. I was expecting flat desert and it wasn't like that at all (only around Vegas). The northeast is pretty mountainous.
