Once asked wheter there are other artists' songs Paul wished he had written himself, he replied that he would choose some 40's standard (don't recall which) AND just the way you are.
Funnily enough Billy stated that he is not very happy with the arangment, which in his view made the song sound tomm much like 10cc.
I like his seventies period best with 52nd street, piano man and the stranger.
never been a great fan of his later period - bridge, storm front, river (the latter being the best IMHO).
The good side of the fact that he ceased to record and rarerly performs is that his voice preserved quite well - you can hear it on his most recent concert CD, 12 Gardens.