The Stones great rock just about any cd is great but I'll mention Beggars Banquet. my favorite stones song "Goodbye Ruby Tuesday", great rock music and great memories. As for their CD quality they all sucked. I mean imagine if the Stones actually had a well-engineered musical CD.
Johnto got it right the best group ever simply the Beatles. It was a time in society that was right for Peppers. Pot and LSD came on the scene,along with fond memories of 20 plus college kids in a black lit room passing joints around with "a day in the life" playing on the turntable. Woo let me turn back the clock 50 years lol.