I have a MasterTow dolly that is easy to load or unload. Do it by myself no problem. I have two front wheel drive cars and also a van in addition to my Class A. I use the dolly with both cars and both tow vehicles. Simple to use, easy to connect and cost way less than buying all the gear for 4 vehicles to tow 4 down. And at age 72 I have no problem handling it all. If I only owned one vehicle that could be towed 4 down I would go that way. But none of my cars can be towed 4 down and I want the wider choice of tow vehicles that having a dolly allows. I can understand why folks with physical limitations would prefer 4 down. Otherwise its just whatever you might prefer. And a tow dolly can still be useful even if you sell your MH. Doubt if anybody will change their minds about this issue anyhow.
Oh ya, I don't have to unlock the steering wheel either. Maybe other makes of dolly do, but mine doesn't. And the dolly follows every turn perfectly, even in those tight Pilot stations that don't have gas RV pumps like Flying J does.