Here is my comparison as I have used both.
As for the tow dolly being easier/better, etc. I already own a tow dolly that I have been using and here is the difference.
1.Flat towing.
Attach tow bar to brackets on Mini.
Drive Mini up behind motorhome and attach tow bar to motorhome.
Hook up safety chain.
Plug in Aux. wiring.
Total Time Approx. 3 minutes.
At Campsite
Unhook tow bar and disconnect it from Mini
Store tow bar
2.Tow Dolly
Get tow dolly out from storage area (may require 2 people to move it)
Attach tow dolly to motorhome.
Connect Electrical connection.
Get out dolly ramps to drive Mini onto tow dolly.
Strap down wheels of Mini on tow dolly
crawl under tow dolly to attach safety chain around suspension of Mini
Store ramps
Total time. 15-20 minutes
At Campsite
Get out ramps
Crawl in dirt to unhook safety chain
Unload Mini from tow dolly.
Store ramps
Find a spot to store the tow dolly(may require 2 people to move it)
