Other then both of them playing piano in the 70's and touring together in the past 15 years or so, these two artists have little to do with one another. But needless to say many people see it as a competition for supremacy ala XTC vs Adam Ant. I am one of those and Elton John comes out on top, every single f'ing time. He is so much more talented then that southie hack that is Billy Joel. So submitted for your approval is Elton John 1971's masterpiece Madman Across the Water.
If anyone thinks Billy Joel is better then I dare them to prove me wrong.
Also I have posted an album and artist that owes a great deal of debt to Elton John. It is Ben Folds collaboration with novelist Nick Hornby, Lonely Avenue. Ben wrote the music and sings the songs, Nick wrote the lyrics. While it is ok, it is not the greatest Ben Folds Album.
Anyway enjoy!