As Robin Williams said, Keith Richards contains the cure for cancer. If the world was destroyed by nukes, there'd be nothing left but a whole bunch of cockaroaches and Keith. He'd be sitting there smoking crack.
As for the Stones, never really did much care for them. Like Zaarin said, they aren't that diverse, which for that genre of music, well, you need to be diverse. I'm a much bigger fan of Aerosmith.