Why would you want dual wheels? They are on trucks to increase the load capability. I have never heard of an ATV tire failing due to excessive load being placed on it.
I know from experience that dual wheels are worse for traction in snow and soft soils. Mud, snow or sand can get caught between the tires when the vehicle is moving in these types of soft soils; they create a “suction” that drags on the wheels and makes getting stuck more likely. Many owners of large trucks and motor coaches are switching to "super singles" for this reason.