I've been using Mobil synthetics in both of my other cars (my wife's '01 Focus ZTS and my '00 Mustang GT) and Fram filters in each for a few years now, with no complaints. Regularly change oil (myself) and rotate tires (others do this) on each between 5-6K miles, and check tire pressure every week. Both cars running really well. Most recent filter on the Mustang is a new one to me--Valvoline Max Life (I didn't know Valvoline even made filters, but there it was at Advance Auto and it was a good price, so I bought it).
Haven't done an oil and filter change yet on the 97 Eddie Bauer V8 AWD Explorer we acquired (for CHEAP) last month, as these had been changed just before we bought the vehicle. But when the time comes, I am going to use Mobil full synth and, most likely from here on out, Motorcraft filters. I had no idea Fram filters were rated so low, but now that I know I am going to use something else.