Sound like the Blue-Ox is the one that will work for you then. This might make it easier.
There is an equalizer weight distribution system
and there is an Equal-i-zer weight distribution system.
Find out from the dealer which equalizer they are offering.
Equalizer is a generic name for an inexpensive weight distribution hitch with an add on of a friction sway control bar. I would take a Blue-Ox over an equalizer any day of the week.
The Equal-i-zer is a named product from Progress mfg. The Equal-i-zer hitch with it's claimed 4-point sway control is fairly easy to spot as it has square weight distribution bars instead of the standard round bars of an equalizer. Whether a Blue-Ox or an Equal-i-zer is better I couldn't tell you.
As others have said the brand name Equal-i-zer is noisy. I will also say that the hitch head is HEAVY, and that is one of your concerns. Based on this criteria it seems like the Blue-Ox is the hands down winner for you.