Who is your favorite composer/pianist and what piece?

Pyotr Ilyich Tchaikovsky, my favorite piece is Swan Lake
Jay Chou, "Secret OST"
Frédéric Chopin "Chopin Waltz"

Grieg's Piano Concerto

I never considered who is my favorite composer. I like traditional songs, like Bela Bartok has traveled and collected traditional songs, everyone knows his Hungarian Dance.
From classics, I like Mozart, Haydn, Pergolesi.
Romantics, Chopin.

Favorite song?
Here is one of them

http://youtu.be/Qhrpc9FFFAI

It's also my favorite Movie.

Almost every morning I listen to the Mozart Sonata In C Major.

Too many to choose from to pick just one. Are we talking specifically piano based and classical?
If that's the case, then probably
Sergei Rachmaninov's variations on a theme of Paganini : Opus 43 X Variation 18.



Well that or The Great Gig in the Sky by Richard Wright / Pink Floyd.