I LOVE jazz! Mainly the old school stuff, and the roots of jazz (like impressionism, early americana, etc.), but I do like some modern jazz. I like:
Satie
Gershwin
Benny Goodman
Ella Fitzgerald
Chick Corea
Dave Brubeck
Duke Ellington (I adore Ivie Anderson's voice!)
John Coltrane
Count Basie
Harry Connick, Jr.
...to name a few.
Obviously, I'm more into the older stuff as opposed to the newer stuff.
Great topic!