I wasn't talking "most popular" but - in the UK - "most well known".
Moving on.
One of Tom's songs that, I feel, needs revisiting, by Tom, is "Jimmy Newman".
Now, idea wise, and lyrically, this song is a masterpiece BUT I think the song fails to be really great by having a number of "awkward" chord changes the song.
I bet Tom was experimenting when he inserted those "awkward" chords, and was trying to escape obvious "folky" chord progressions.
But, unfortunately he ended up with a jarring effect that, for me, prevents the song being a true masterpiece.

Of course, Tom(now he's got more time on his hands) could have a go at a rewrite.