there's absolutely no way I could possibly pick a favourite beatles album because there are so many amazing ones that are different but still retain a masterpiece-esque quality.
the albums I'd say that would not fit the "best albums" for me would include "with the beatles", "beatles for sale" and "let it be" (let it be is really good, it's just not as good as the others on the list)
obviously that means that a hard day's night, help, rubber soul, sgt peppers, magical mystery tour, white album and abbey road remain. If I had a gun to my head and someone was forcing me to pick a best album, I'd have to rank them like this:
1) revolver = white album = rubber soul = magical mystery = sgt pepper's
2) help =/> abbey road
3) hard days night > please please me
that's the sort of tiering I'd give them; the four at the top cannot be chosen between.
if I was tortured into choosing just one favourite out of all of them, I'd possibly have to choose revolver. but again, that's if I was out of my mind by that stage because I don't actually consider that one my favourite officially