Tow Vehicle - Dual tires in back or single? Which is best?

When we were full-timing, I towed a 32 foot fifth wheel with a 4X2 Dodge 3500 dually. It was also our daily driver. I never had a problem in parking lots at any store or restaurant. I never got stuck.
After we settled down and bought a house and two horses, I used the truck for hauling hay. 35 bales on the truck, and 100 on the flatbed trailer behind it, at 65 to 75 pounds per bale. Never got stuck.
Of course, at the same time I had a Jeep Wrangler Rubicon Unlimited...