i would say not as important if your using a patenoster, however if your just using the jigs by themselves without a patenoster then the good brands are better. I often have both out in deep water, jigs by themselves only work in deepwater if its a slow drift without much current.
Another tip is to use the brands that have long flexible spikes on them and fish fairly heavy line, when you get snagged up you can just bend out the spikes with heavier line. Heavy line doesn't seem to affect catch rates in deep water. My two cents