The question is, how do the buying public rate the individual albums of J,P,G & R? I spent quite some time on Amazon over the weekend, and looked at the current rankings for a lot of old albums by various artists, to see how well they've stood the test of time. What it told me is that if your album is more than 10 years old and it can still get into the top 5000, you can say it's a success. Oasis, for example, who were touted as the new Beatles in the '90s, have four albums that old, but only What's the Story? makes it in at #3917. And they're an active touring band with a publicity machine going full blast.
Paul has several albums that qualify, but to make a level playing-field with John, I've only included those from the 70s. Nothing by Ringo makes it in at all, I'm afraid. His best is Ringo, at #6809. But these following all got below #5000:-
All Things Must Pass #2136
Imagine #2433
Ram #2924
Band on the Run #3303
Plastic Ono Band #3830
I'd say that's a pretty good showing by all three former members. And it doesn't look like Band on the Run has dated either, as some have said, at least not according to the buying public. I think I'd call it even-steven between them all, because Amazon rankings can vary enough that the order might be reversed tomorrow.
But just to put things into perspective, any Beatles album knocks all those right off the playing field. Leaving aside compilations (including Yellow Sub) they have 12 albums produced over just 7 years. With that rate of ouput, you'd think at least one of them would be a dud. But when I looked, the worst performer was Beatles for Sale at #894, and there were only two outside the top 500. The best was White Album at #70. Obviously, Beatles together is what people want.