Here is the quote from Paul not John, straight from Anthology, and varying little from Paul's multiple tellings of it (the earliest being 1988 to my knowledge, and the most recent 2007).
"John and I shared a room and we were taking off our heavy ski boots after a day's filming, ready to have a shower and get ready for the nice bit, the evening meal and the drinks. We were playing a cassette of our new recordings and my song Here, There qnd Everywhere was on. And I remember John saying, 'You know, I probably like that better than any ...