Why are the 11.75 Brake Better?

Great time to stumble on this old thread. Was wondering just which cars used the larger rotors and brackets. I get that the 78 fury, cordoba etc. used them so at least I have a direction to go. I'm converting manual drums from scratch on my 72 and did get the later model UCA's. Anybody have an opinion on which is better, sliders or pins and were the big brakes available in both styles?