I think for me it’s Let It Be. I thought the “Naked” version was better for the longest time, but a few years back listening to the original album made me really love it. I think the ballads and slower songs are still better on the Naked version, but the rest sound so full and energetic on the original.
I love Why Don’t We Do It In The Road. Admittedly the song is only the vocal performance and not much more.