Synthetics are the best. Motorcraft is a compromise between cost and quality though still better than most.
Synthetics cost more, but prevent wear better. Ones like Amsoil have longer term additive packages. I only change my oil once a year -- about 20K miles between changes and the oil tests fine. Not for everyone though, lol -- we've been programmed to not believe that's possible and some people can't overcome the fear.
I used Amsoil full synthetic in my auto tranny and when I opened it to rebuild it, it was in very good shape with almost no wear on the soft parts even at 90K miles.
Royal Purple is about as good though I'm not sure if it's for long drain or not.