Motorcraft filters are good and the anti drainback valves are excellent on those filters i always use them on all the fords and lincolns with great results we stock the 820's in our shop and also use group 7 we buy in bulk they are all made by made by purolator...
Napa gold a lot of people like also i have used them in the past but are hard to get at a good price..
In my opinion, you would be throwing money away by using a more expensive filter than the FL-820S. It is a very good filter, which I have used many times in the past on a '97 Expedition, with excellent results.
Have you cut one open?
Mobil 1's are very good as are Purolator Pure Ones, Napa Golds and Carquest Blues and Wix.
I would give the nod to Purolator and Mobil 1's but would like to see them side to side cut open and compared.
But these would be at least equal to it I believe.
Well if you spend more you can get better.....
Motorcraft is a decent filter for the money.
Amsoil EA, Mobil 1, Pure 1 I believe are better. Pure 1 has a lot of bang for the buck.
Amsoil EA is probably the best out there for stock engine applications.
If I were to pick something other than the FL-820S, it would be a Purolator PureONE PL24651. The ADBV looks mostly the same as the one in the FL-820S, so it should work just as well to prevent startup rattle. The PureONE has a significantly larger amount of media.