Under Appreciated Jazz Piano Players

Good lists, guys. I'll include another "baker's dozen" that deserve wider recognition (unfortunately, about half of them are now deceased):
1. Roland Hanna
2. Tommy Flanagan
3. Michel Petrucciani
4. Jimmy Rowles
5. Erroll Garner
6. Marian McPartland
7. Chucho Valdez
8. Michel Camilo
9. John Hicks
10. Barry Harris
11. Cedar Walton
12. Kenny Drew
13. Gene Harris

Here's another one, sparked by seeing the name Kenny Drew - Kenny Drew, Jr. (the son) has a phenomenal technique and plays interesting material.

Marcus Roberts
Here's one you might not expect--one of my personal "under appreciated" which is Chick Corea. I never really appreciated his brilliance until he did the Mozart Sessions.

The late Art Edgerton. He played solo and with a trio.

Scott, I hate to nitpick. OK, I love to nitpick! :-) Do you think Erroll Garner is under appreciated? I think this a case where you would be gladly mistaken, no? If he is under appreciated it is a situation that deserves much publicity. I would have thought that Soliloquy, Gems, and Concert by the Sea, among others would already have a place on most jazz pianist lovers' shelves.

I post this question not so much to take issue with your taste or opinion of anything jazz, which is consistently impeccable and accurate, but rather to highlight to others that his are recordings that are among those in the "must have" category.