Lots of great suggestions here. Mine is Cannonball Adderley's "Somethin' Else." It's my understanding that this is basically a Miles LP that was released under Cannonball's name for contractual reasons (longtime jazz gurus correct me if I'm wrong.) Kind of Blue is undeniably wonderful but I find I'd rather listen to, well, Somethin' Else most of the time. I love the Blue Note sound, and the late fifties Riverside stuff. Personal faves are Hank Mobley and Lee Morgan, absolutely fantastic stuff. Donald Byrd, Milt Jackson, Kenny Drew, Sonny Stitt, MJQ, Monk, Blakey, Freddie Hubbard, Sonny Rollins, oh man oh man. All that stuff from about 57-61 or so just blows me away. Can't wait to hear some of this stuff on SACD.