I've got a Blue Ox weight distributing hitch system on my 2001 19ft Bambi.
I ordered it from a Blue Ox dealer and installed it myself. The hitch has worked well for me. See comments and pictures of it on my website mswartz.com
To date, I've put over 20k miles on the Airstream with it, first towing with my Odyssey, and more recently with my Ridgeline truck. I have not seen another in use. Let me know if you need further info.
2001 19-ft Bambi
2013 Honda Ridgeline RTL