They're all music landmarks, they all have their highs and their lows and they all have made history. Therefore, we should vote for our favorite - that's all.
It is a tough call, kinda depends on my mood. I voted for Rubber Soul, because it is an uplifting & fun listen. Was torn between St. Pepper's and Revolver as well.
after having quoted the wise Sergio .. in my opinion their peak is among Rubber Soul - Sergent - White Album.
choosing just one i go for the last. an album with different facets (and cause of this maybe the most arguable) .. lot of stuff in there and lot of seeds for the next generations of musicians .. Helter Skelter for saying one
oh well they put seeds in almost everything they did
and i love the fillers too .. i always liked finding "Bugs" every now and then