I install about a dozen geras a week and sell that many more, so my experience...
To start, the chryslers use a different cut and can tend to be a bit noisy at times depending on the exact cut/factory that makes them, and the ratio, and the PERSON INSTALLING THEM...
The least expensive gears I sell have been great in every case we have installed them, and never got a complaint from a customer. The most expensive gears we sell, also same thing. The mid level we have had only one application have issues, both myself and customers(no longer sell those for fear of continuing issues).
I have to say in todays gear market with there being only a few importers and distribitors that the brand names are buying from and importing from, that you should be ALOT more concerned with Who installs them, then what they install.
Some gears are more straight cut for more strength, and some are less "straight" for quiet operation. In any rig with some lift (wind noise) and larger semi agressive tires (A/T or better), the cut or brand name means less I feel (within reason).
But if you were to ask me to rate, gear box brands, I would as such, best to least (in my experience), rating Noise and setup ease.
Yukon
Spicer
G2
Precision
Superior/Motive/USA standard (tie)
Nitro
Keep in mind though that a few of those up there buy from the same company, for some of thier sets and ratios. Not to mention that to the best of my knowledge, only spicer actually owns and uses in house Gleason machines to produce thier own gears. And Yukon some months ago, actually also bought 2 maybe 3 gleason machines so they too could produce and fully control 100% of the quality control of thier products. The rest all buy from factorys that they contract with. And when thier typical factory is behind or in some cases when a different known importer/factory has a better price/avail, a company will buy from them and box those.
Its so very hard to buy a brand name with confidence. But with a off road ride, its really not rocket science. If theres a bit of noise due to the cut, it will not effect anything and you wont even hear it. It they are installed incorrectly, you are screwed at some point.
IMO, if you buy Yukon though, you will always buy one of the best possible boxed sets, but you will pay for it.