My earliest memory of being aware of an "album" was Beatles '65. My aunt played it when we visited once- I was 3- and she says I so obviously liked it so much she gave it to me.
It introduced me to my first favorite Beatles song- "I'm a Loser." Love that country shuffle.
I had several minor favorites until I saw an older brother of my friend with a Beatles LP that I had never seen. He told me I wouldn't like it. It was Revolver. It's still my favorite Beatles album.
New favorite song: "Tomorrow Never Knows." Seriously, I didn't know what it meant when I was eight, but it was my favorite, hands down.
I filled in my collection gradually- it was hard to do in those days, I had to rake the leaves and put away dishes to buy music- until I turned 14, when I lied about my age and got a job at a crummy restaurant. Then I could go ahead and buy the rest of the beatles albums. I remember being really knocked out by the "Big Medley" on Abbey Road- absolutely loved that part of the album, it got all nice and scratched from me plunking the tonearm down at the beginning of "You Never Give Me your money." I loved the fact the beatles returned to the song later in the medley. So, that was beatle favorite number three.
But then I got Magical Mystery tour and it was packed with songs that are still favorites. "Penny Lane" and "I am the Walrus" have both been my faves at different times.
I could go on and on, I'll spare you. The Single most favorite of all time:
Strawberry Fields Forever. Nothing else comes close. The words, the vocal delivery, the melody, the instruments, the clever way it was all knitted together by George Martin. If I wanted aliens to understand what the big deal was about these Beatles, I'd hand them a copy of that song. Yes.