I personally still prefer the OEM pads for my car.
Also, the OEM pads are NOT organic, they are semi-metallic. They contain a higher amount of synthetic graphite which makes the brake dust blacker in color and more visible on your wheels. I have never used metal masters, so I cannot comment on how their performance measures up against the OEM pads.
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record