Unfortunately we have a problem here.
If you can remember a song it is unlikely to go away.
Most of the songs that you mention suffer from one problem only, OVEREXPOSURE. Each of them has survived so far on it's own merits. Just because we are sick of hearing a song doesn't make it a bad song.
Amazing Grace is another in this category, it is a good song but, just once, I'd like to go to a sing and NOT hear it.

I think a more important project would be to list songs that most people have forgotten but need saving.
We are in great danger of losing a lot of good songs just because they fall into the category of "old pop".
A positive emphasis in this direction would reduce the frequency of performance of "SONGS TO DITCH".

Bert