I've tried Hawk, Porterfield, then Carbotech. I've liked the Carbotech pads the most by far. They last quite a while, are rotor friendly unlike the other pads I tried, and work great. They also came out with a new brake pad bedding process that they can complete for a few extra bucks which I like since it saves me wasting a session at the track. http://www.ctbrakes.com