I last posted to this thread almost 5 years ago! Is that possible?
Since that time one cd has definitely gotten the most time - "Out of The Cradle" by Lindsey Buckingham ca. 1992. Has seen almost daily use in my car. Recently Don Dixon and The Jump Rabbits CD as well as Rosann Cash's "The List" are getting quite a bit of vehicular time, too.
At home, Duke Ellington's "Far East Suite" has probably been the "Go To" choice, although Allen Toussaint's "Bright Mississippi" and Alejandro Escovedo's "With These Hands" have both been in heavy rotation, too.
Marty