Well this is a new question. Honestly unless you are a bar I don't think you need to spend $$$ on the most expensive coupler. I have one that is probably made in China and it's going on 3 years of solid use with no issues. Honestly if you keep it clean and put keg lube on the rubber parts, it doesn't really matter IMO.
Get the cheaper one then ditch your crappy faucet and upgrade to a Perlick forward sealing faucet
like this one:
That is worth spending a little extra on, not the name brand coupler.