Looking at the Cincinnati set list, here's what I think are better live versions than the studio and vice versa:
Better live:
Juniors Farm
All My Loving
Jet
Sing the Changes
Let Me Roll It
Long & Winding Road
1985
Here Today
Dance Tonight
Mrs. Vanderbilt
Obla di Obla da
Back in the USSR (close call)
Let it Be
Live & Let Die
Helter Skelter
Golden Slumbers/Carry That Weight/The End (by a mile)
Better in the studio
Hello Goodbye
Drive My Car
Paperback Writer
Let Em In (close call)
Maybe I'm Amazed
I've Just Seen a Face
I Will (close call)
Blackbird (close call)
Something
Band on the Run
I've Got A Feeling (needs John's voice)
Day in the Life
Hey Jude
Lady Madonna (needs brass)
Day Tripper (Paul's voice can't quite do it now)
Yesterday (needs real strings)
So, it's 50:50




