The best Beatles' hits album would be one that contained their twenty-six UK A-sides. You can make this easily yourself by dropping 'Yesterday,' 'Eight Days a Week,' and 'The Long And Winding Road' from 1 and adding 'Please Please Me' and 'Strawberry Fields Forever,' and by substituting the Ringo version of 'Love Me Do' for the Andy White version. That's my version of 1, anyway.
Alternatively, Dr Ebbetts' collection of the UK singles, complete with the B-sides, is terrific, too.