Best Road for 38 ft RV & tow to Rt 101 from I-5

All three are long and winding. I've lived on 199 for 40 years and have driven it literally thousands of times. Many times driving our bus and towing a Nissan Xtera. It follows the Smith River Canyon and is quite beautiful. Especially as you drive through Redwoods National Park. There are some narrow spots where you really have to pay attention but all in all, having driven all three of your choices, I would choose 199.