Elton and Billy are two enormous musical talents, effectively ranking first and second in the world of piano pop. It’s hard to say who's first and who's second even today, after thirty years of listening to them.
For instance, I find Billy more genius in his chord sequences, more naturally "rock" (that is, capable of being "hard" when he wants), and more dynamic in the contrast between verses and choruses, many of which are truly explosive.
On the other hand, the voice of young Elton was unbeatable—high and exciting, a thousand times better than the American's. It’s a pity that it faded after the surgery in the late eighties, giving way to a seductive baritone emission, substantial and convincing but a whole different thing in terms of emotion.
Billy has managed to maintain his voice intact much longer, up to the dawn of the new millennium. He has that very metropol-American quality that some may like or dislike. Elton also adores the USA, but in a more rural and laid-back way. Billy is the symbol of the urban and hurried New York.
Elton has composed and released twice as many songs as Billy, never stopping and filling his repertoire with fillers and unnecessary didacticities. Billy has been more efficient, maintaining a better average in terms of quality in his albums, and then in 1993, he switched gears, stopping the composition of fluff and relying on live concerts to extend his career.
Elton is a rounder and more enjoyable pianist; he has a delightful and recognizable touch, and his right hand creates delicious and musical counterpoints. His specialty is intros and outros—true songs within songs that sometimes stick in memory better than the vocal melodies.
Billy is a brighter and more powerful pianist; he loves to move the bass with his left hand to surprise himself and us. He works less with the right hand than Elton, tends to be more rigid and less enveloping (more rock and less pop, in short).
May God keep them around for many more years; they are two greats, and I take delight in strumming on the piano both "Someone Save My Life Tonight" and "This Is the Time," as well as "The King Must Die" and "And So It Goes," as well as "Tickin'" and "All for Leyna"...