#1 is an easy drive but longer. We've done this a few times.
#2 You would want to take I-10 to Brenda and get on 60 to 71 to Congress. Take Skull Valley highway (I think it's 15) into Prescott. This skirts the 'big hill' on 89. It's also an easy drive. You will have an uphill at Yarnell but very doable. We've done it often.
#2 Definitely do not take 89 all the way from Congress to Prescott. It's not for big rigs. Take Skull Valley.
We take either one depending where we're coming from. Have a great trip!
Full-Timed for 16 Years .... Back in S&B Again Traveled 8 yr in a 40' 2004 Newmar Dutch Star Motorhome & 8 yr in a 33' Travel Supreme 5th Wheel
If you take 89, you'll never opt to repeat that mistake. In my 36' DP we couldn't go around corners in our own lane as the tail swing would put us into the guardrails. It was a nightmare.
There is a length limit of 40' on US 89 South of Prescott. It isn't a long stretch of switchbacks, but it takes forever and would be a big climb, even if you disconnect, which you would need to do, heading north to Prescott. The outcrops on the inside of the turns jut out enough to make it quite hairy in a motorhome. We did it going south in a 38' DP without a toad and it was hair raising, not to mention incredibly slow. 15 mph a lot of the time.