which switch
I honestly doubt that you could tell whose brake you were using in a "blind" test. All of the above mentioned manufacturers do the job. One potential problem with remote-mount brakes is their greater exposure to contamination from road salt. Living in the southwest, that's not an issue for me.
I would ask not only how well it works but how easy is it operate? Again, no manufacturer has the market cornered on switch design. But I'll tell you this, I absolutely love my (manual) shifter mounted pull/push switch. It is the coolest operating feature on my truck! The thought of poking my finger towards the dash for a cheap rocker switch is grievious. So, whose ever brand of brake you buy, think very seriously about the switch.
I'm sure I paid too much for my Cummins brand switch, but I'd do it again in a heartbeat because it increases the usability of the brake. On the other hand, I got a great price from Mechanicsville Dodge on my Jacobs brake that I enjoyed installing myself, so all together it was a good deal