When I sat in the car below.
http://us1.webpublications.com.au/static/images/articles/featurepics/1789.jpg The owner explained to me that he had tried all different pad combinations.
Also upgraded on this and his daily driver to Supra Calipers and Rotors on the front which he found to be better, but one of the Luffs drove his car and smoked the brakes after 3 or 4 laps.
In the end he upgraded to AP Racing on both this and his street car.
I do like how he actually went, and tried different things.
I see a lot of people in general who have tried one method and quick to dismiss everything else as a waste or not as good. Kinda like giving reviews and criticism on a movie you havent watched I think.
The owner of that car, went every week or every two weeks to wakefield. If you dont take your car track that often then probably no need.
Also bare in mind money was not an obstacle for him. So while he has the time and money to find the best combination money has to offer, most people dont. However I took his advice, after he drove my car and the ABS kept on clicking off on hard braking after 4 or so laps. He told me if I was serious to take his advice.
Just saying.
Do what is right for your needs and within your budget. Plenty of people here have tried lots of different things so identify what you need, then you can figure out what you have to do.
Simples
http://www.e-celebrities.org/wp-content/uploads/2011/05/Compare-the-Meerkat-001.jpg