We are doing a trip (in May) from Raleigh, NC to Lake Havasu City, AZ and are looking for input on the best route. We'd like nice scenery but won't be making any site-seeing stops. I've gathered from searching other posts that I-40 is recommended. A friend has said I-40 was too congested with trucks and I-20 and I-10 was more scenic and better traveling even though about 200 miles longer.

Any input or suggestions from any experienced roadtrippers?

Thanx.