I think the Beatles not reuniting (as they were planning to do in 1981) robbed the world of a magnificence we could to this day not imagine.
I believe they would have reunited for occasional projects - so when we talk about the Stones, first creatively they're not even in the same league - I mean they're not, second, the Stones never broke up really - instead they kept recording and touring year after year after year when they should not have - and third, what John, Paul George and Ringo might have produced together in their mid-forties or mid-fifties - ...