I've read of several failures of the Wix and Magnefine type filters, some
catastrophic, some minor leaks, but how about the spin-on types such as
B&M? Are they more reliable than the plastic housing type filters?
Where are you reading of these failures? I have used several and no issues. Awhile ago some Magnefine filters may have had a tiny leak around the threads but the newer ones heat seal the threads.
The Magnefine have a magnet in the middle of the ATF flow and 35 micron media filter. The spin on ones have no magnet and maybe 15 micron media filter.