Hello Danny and Sue,
We have used both hitches with our F250 and Van combination.
The Shocker Hitch is a good hitch and was used with no issues, you need to have the ability to lower or raise the bag pressure whilst travelling to get the best out of the hitch action.
I do know of some who have the Shocker Hitch have broken the airline off the bottom of the Hitch which in my opinion is a concern and needs a protection plate.
The Air Safe Hitches are superior due to the fact of the shock absorbers making a major difference to the ride of the towing vehicle and supporting your van.
The Air Safe is more expensive and quite bulky and protrudes out from the tow vehicle by 380mm from the receiver to the tow point.
Having used both Hitches over many miles and different terrain even considering Price and the Protusion I will never go back to a Shocker Hitch
Very happy with the effectiveness and overall operation of the Air Safe Hitch.
Cheers and Safe Travels