The better (artist)....

Of coarse Yoko did not have the forethought or insight of John's songs. 

Comparing John to Curt is easy...JOHN!

Cher was superior to Sonny.

Cher/Sonny aren’t in the same hemisphere as John/Yoko or Curt/Courtney.

Think about it... what did Sonny bring to the table? Nothing. Exactly! At that moment in time, males where the dominant draw. IE: Can you imagine a show entitled Cher & Sonny? Hell no!