Brake rotor question

We have found some brake discs to wear quicker than others; steel seems softer with some brands. We know some car manufacturers alloy their cast iron differently than others which could account for the accelerated wear. Another factor is the brake pad. Some appear to be more abrasive than others causing the discs to wear out quicker. We have had success using OEM brands like PBR and Akebono. The Bosch pads seem to wear a little faster, but work just fine. As for your question, is one brake disc better than another? When we replace rotors, we use OEM parts like Brembo or PBR.