I don't think John would have hit the chorus too good in Oh Darling....I mean it is amongst Macca's top notes in his entire Beatle career. Loved to have heard a version with John doing the verse though and I am sure he would have glided through the chorus somehow, perhaps like Paul does in the anthology version. The track reminds me of You Really Got A Hold On Me in it's style of era....Could just be the big fat A chord. lol