Ok folks, you've not failed me yet! Here's one that may require some Canadian input. We're going from Vegas to the lower mainland in B.C. Not looking to sight see or doddle. What would be the easie...
I-5 is getting pretty used up by the semi trucks--rough and at times congested with big rigs. As far as driving large cities (Sac, Portland, Seattle), don't do them during rush hour. Have fun, be careful, and enjoy the ride.