If you Google Map it, you'll find 3 routes, one takes you through Mojave Preserve. I've run the Mojave Death Race twice through there and the roads are mostly two land and all paved. It's actually a good alternate to Vegas if the 15 is backed up. The other two take you through my town (Ridgecrest), which according to our billboard is the best way to Death Valley. I have driven both routes and so long as there's no monsoon, both are reasonable. That said, it is the desert and there are a lot of hills (mountains), curves and narrow roads.
If you take the Mojave preserve you can stop at the Mad Greeks in Baker, Ca for awesome gyros, it's a mid-point.
We are headed to Furnace Creek in two weeks, so we get to traverse Death Valley and go right through Stovepipe Wells.
Link to Google Maps: https://www.google.com/maps/dir/Twen...062109!3e0!5i1