I have only used the Andersen so I can't comment on other systems except from what I see others doing. The Andersen is very simple and lightweight as others have said. The best thing about it is the anti-sway. My TV was a half ton Yukon XL and is now a 3/4 ton Yukon. Neither vehicle ever swayed towing a 30 foot Jayco. I did a comparison test last January in a fairly windy desert and watched trailers ahead of me fighting it, and my experience was very smooth. I will say that weight transfer isn't probably the best, but that hasn't been my priority (my trailer weighs 6700 pounds with 1050 on the tongue). I have had great customer service from them when I first got it and had a couple of questions.
I see people fighting with their other WDH brands at the campground and it seems like a lot of work. That Propride probably does a good job, but the guy I know with one needs help connecting the hitch to the trailer. I do my hitching alone and efficiently.
PS I am aware of the vandalism charge. I think he is pretty repentant about it and I don't think he deserves a life sentence. We all draw our lines in the sand somewhere, I guess.