Too true, it's all personal preference. I also suspect the tone of this was tongue in cheek. Most of these bands have had cheeky little comments before in passing and then they(the receiver) will joke about it on stage at their next gigs.
I don't really get the fascination with the Beatles personally. People can talk about cultural significance or originality all they like(
although Science says some of the credit they've been given is overblown anyway). I really don't think their songs have stood the test of time as well. The Stones are top of the list for me in that regard, I still find myself going back to their tracks for a listen, no matter what mood I'm in. I suppose there's a time and place for songs that you just sit and listen to and ponder(The stones have those) but overall, I just ask myself, how does their music in general make you feel? That's what music is to me anyway. They had feeling and soul, which really comes across if you've listened to some of their live tracks from the pomp. There are different kinds of energy and on stage presence, you either understand that or you don't. They had that in spades, whether some recognise it or not.
They were all fantastically talented musicians too but that comes down to personal taste also. Much better man for man, than the Beatles for me.
Quincy Jones doesn't seem to rate the Beatles much at all in that respect. Although I think that take is a tad too over the top.