Any tips on patchbays that maybe I should stay away from or which are fairly transparent?
That's not really a concern. If you put a ohm meter to any of these things, the difference will be nothing worth worrying about.
Your concern, price wise is how well it will stand up over time. You don't want to be cleaning funk off your connections every two months.
On the other hand... a word of advice you won't hear on this site too much--- everone here tells you to get a patch bay.
It seems to be some sort of badge of honor (no offense everyone... I'm just calling it like I see it). Unless you have a pretty good amount of gear, this is just a pure waste of time.
The point of a patchbay is to make it easier when your studio starts turning into a jungle of patch cables. If you aren't having problems, you probably don't need one... If you only have a few processors, you probably don't need one.
I keep seeing threads asking how to hook up a patch bay for eight tracks, three processors, and one or two compressors.
YOU DON'T NEED IT!
If you're at this point, your time is much better spent LISTENING and practicing your art than learning what a pain in the a** it is to solder a hundred connections in the back of a rack.
Successful people know how to budget their time. If you have less than three or four effects units and six or so channels of dynamics processors, you're better off with long cables and good color coding.