17N out of Phoenix can get gamey in the Winter, its a fairly steep and long climb right into snow country at Flagstaff. That route selection is strictly a function of the weather and temperatures...watch out for the Black Ice anytime in the Winter, especially in early mornings.
93 isn't quite as bad however it is slow and you have to watch how you enter Las Vegas, I do not know what the current status of the Hoover Dam thing is but it has been difficult in the past.
I would probably take 10 West to 95 (Quartzite to Parker and transition to the California side ......review your map, you will want to go to Vidal Junction). BTW there is a California Fruit Police Station at Vidal so hide your veggies! That will put you on 40 at Needles, then climb the hill West of Needles and get back on 95. Caution, caution again, just after you get on 95 Northbound (West of Needles) there is a railroad crossing that is marked at 25 mph....that's way to fast. 10 mph is much better...do it at 55 and you will be looking for suspension parts, tires, dishes, television sets, etc. Other than that the roads are all good.
John