"Rubber Soul" was very good but I wouldn't call it a masterpiece.If you ask me, "Michelle" was easily one of the deepest and best songs Paul wrote when he was with The Beatles.
If I thought the word "masterpiece" could be applied to music, I most certainly would call it that.
It's part of what makes the album "Rubber Soul" the MASTERPIECE it is!!
Over rated, over hyped.
The Beach Boys "Pet Sounds" on the other hand...