Both will work just fine, but if I had to make a choice between the two, it would be the Napa Gold because of the silicone anti drainback valve. I own two vehicles that use the FL-1A and I use either Pure One or Wix (Same as Napa Gold) strictly because of the silicone anti drainback valve on those versus the rubber anti drainback valve on the FL-1A.
In my experience, the benefit that the silicone anti drainback valve gives versus the rubber is that it reduces or eliminates start up knock/tap/rattle.