I will offer one last piece of advice. You should be able to set up your tow vehicle and trailer so that you don't experience sway under normal circumstances. That should be your basic goal. The anti-sway feature of these hitches should be considered a safety feature above and beyond being properly set up. Those HA and PP hitches can eliminate sway from a system that may otherwise not be stable. The other hitches mitigate it as it happens.
If your set up is fine tuned and your tow vehicle is not close to maxed out, any of the hitches should work fine.
I've used the Equal-I-zer brand hitch for 16 years now without a hiccup. It has pros and cons.
Pros:
No need to remove and store hitch or bars if you don't want to. They won't fall off after unhitching.
If you use a power tongue jack, hitching/unhitching is quick and easy with no tool required.
Awesome sway control.
Cons:
Heavy, but aren't they all, except maybe the Andersen.
Noisy, especially during low speed maneuvers. You can add nylon pads to the L brackets, and it's recommended that you grease the head where the bars are attached, which works some but not for long.
I'm sure there's more pros and cons, but they're just not coming to me now.