On the 24th of this month I'll be driving from Boise, ID to Dallas, TX in my Grandpas old 1971 F100. I have no doubt in the trucks road-worthiness - I have AAA premier if my lack of doubts proves foolish (200 mile tow). I plan on doing this trip in 2 days (13-14 hour days) but have allowed a third and 4th day if something goes wrong/I decide the days are too long.


Original plan (for no specific reason) was to go Boise-SLC-Albuquerque-Dallas, but I'd like some input from the seasoned roadtrippers on that route and the other options - Google maps gives me:
1. Boise-SLC-Albuquerque-Dallas via I-84/I-15/US-6/I-70/US-191/US-491/US-64/I-25/I-40/US-287/US-380
2. Boise-Cheyenne-Salina-Dallas via I-84/I-80/I-25/I-70/I-135/I-35
3. Boise-Cheyenne-Amarillo-Dallas via I-84/I-80/I-70/US-287/US-380
4. Boise-Cheyenne-Nebraska-Salina-Dallas via I-84/I-80/US-183/KS-9/I-135/I-35

I'd post links to routes but new member message said I can't so I wont bother trying.

Thoughts? Must see sights along the way?