BEST is subjective depending on your application. I’m happy with my Racing Brake rotors and pads. Thy are 2-piece rotors on all 4 corners and come with their XT910 pads. The combo bites better, has less noise, and are way less dusty than the stockers. The added benefit of the 2-piece design is less weight (about 10 pound each corner), and in the long run, since the aluminum hats are reusable, only the steel rings need to be replaced, saving some money.
The down side is cost... around $2500 for 4 rotors and pads. The upside is that if your SRT came with the Brembo PERFORMANCE 2-piece rotors in front, the full RB set costs less than JUST the Brembo fronts.