I may have been one of the few that had a bad experience with EBC stuff. I had the rotors and Green Stuff pads on both the front and rear of my car. It only took about 15k miles to warped the rotors (and I do mean Warp, NOT transfer of pad material). It got so bad that when I would go to slow down on the highway to get off at an exit, the second I put my foot on the brake pedal, the steering wheel would begin to shake back and forth. Every time I drove the car in any sort of traffic and got the brake a little hot, it would sound like a subway pulling into a stop in NYC (those of you who have ridden them know the sound I speak of). I finally broke down and put the OEM Declo brakes and pads on the car. So far with about 10k+ miles on them, I haven't had a single problem at all, and I beat them pretty hard at time. Harder than I did the EBC's.
I think the problem for me was the fact that some of the black coating that comes on th rotors got stuck on the pads and never fully came off. This produced hots spots in the pads and subsequently destroyed my rotors from excessive heat. It even got so bad, that after an very abrupt stop while trying to avoid someone on the road while going down a hill, the car actually set a code. This code read, "Thermal Brake Model Exceeded". This is thrown when the car determines that the brakes have exceeded 700 degrees Fahrenheit. Thats pretty damn hot, especially after just one stop.
I would go with the Powerslot brake if your not going with OEM stuff. Raybestos make some realy nice pads as well. I've heard form a few peopel in the industry that Raybestos actually manufactures the brake products sold under the AC Delco name. I'm not sure if that's true or not, but it might be the reason why the OEM stuff always seems to last the longest.