1.- Revolver: It's simply perfect. In my opinion, it has the best love song ever written (Here, There And Everywhere), a brilliant song like Taxman with a real message and the great creation of Eleanor Rigby, probably one of the saddest songs of all time.
2.- White Album: What can I say about this? It has been really influential on the good and bad way (let's just remember Charles Manson) and that is what talks about the greatness of this record: how anyone can relate to it and get a very special and personal meaning for it. It has so many great songs and they are all so different from one another that you just can't get bored. Happiness Is A Warm Gun is definitely a brilliant song.
3.- Help!: Very simple love songs. But i find that the simplicity of the thing they try to express is what makes it just that more beautiful. Because its lyrics like these that any of us can feel, but it's just so hard to put it in music, and the way it is delivered in this album is just fantastic
4.- Let It Be: Great Rock&Roll and other favourites of mine like Two Of Us and Across The Universe.
5.- Magical Mistery Tour: Beautiful psychedelic pop. Probably one of the most fun albums I have heard. You can laugh with it and it will probably never bore you.
The Beauty of the Beatles catalog is that its so diverse, different and equally great that you can never really say: "This is the BEST Beatles album". Unlike other bands where there is a generally accepted "Best Album", that doesn't happen with the beatles. Most people say Sgt Peppers, but that is mainly because of how influential it was in the time. But when you analize it now in retrospective, it's an impossible mission to determine which is the best.