I had this same decision a few years ago when local shops started changing filter brands, stocking levels, etc..... I have Kubota's and JDs.
In my case, it is easier for me to go to JD and my store is very competive with NAPA(Wix). Between Baldwin and Wix, I occasionally saw cross referencing "glitches" regarding which filter to use(mostly with Baldwin). That bothered me.
I like and use NAPA/WIX filters on my cars, but when I visually compare some of the big tractor filters, sometimes the WIX ones just don't SEEM to be built quite as well (weight, etc.). Probably just my perception/bias.
All of my JD filters(oil, fuel, air) seem to be built like tanks.
My Kubota hyd./tran filter is $28 dollars. The WIX replacement is $8 dollars and weighs about half. Is Kubota gouging me or is the Wix that much of a lesser filter. I don't know, but the Wix almost seems too inexpensive.
A local CAT dealer told me about an expensive engine rebuild due to a "will fit" after market fuel filter that was the wrong micron fitting.
All anecdotal stories, I apologize.
Oil filters are probably not as crucial. But excellent air and hydraulic filters are vital on tractors.
I'm not normally an OEM parts guy, but in this case, I chose to stick with JD for convenience and peace of mind.
Tell us what you decide. Try the purolators once and see how they look and "feel" compared to the JD's. Unfortunately, there isn't much else you can really compare regarding true performance.