On my journey to find a WDH with sway control, I've compared a few popular WDH setups. This may help others new to towing to help them compare and choose a WDH. I've left a few comments beside some of the cheaper hitches that may explain why they're cheaper than the competition. In general, the more expensive hitches have nearly zero poor reviews on Amazon, and members here swear by them.
I hear a lot of people saying that sway control isn't necessary, but I also listen to my father who towed trailers at different times over the years. Aside from winds, passing semis, he also told me that antisway really helps on uneven pavement to keep the trailer from bouncing around if a wheel goes into a dip or pothole.
I have also heard some say that WDH transfers more weight to the trailer wheels, which increases the load on already marginal tires, if they haven't been upgraded. My answer to this is that they should be upgraded. I've heard that the wheels should be upgraded with tires too. I have yet to do mine, so we'll see if I follow my own advice, but I've had my trailer for only a few weeks so far.
Anyway, hopefully other newbies can benefit from my research here, even if it is a little limited.
WDH.pdf