As of yesterday, it's David Bowie's "Live in Santa Monica '72". I listened to it for the first time on my iPod while doing yardwork (what a mistake...) and had to stop and just sit on the front step to just listen to the music several times. If you're a Bowie fan, and especially if you're a "Ziggy Stardust & The Spiders . . . " fan, you must listen to this CD a.s.a.p.!!!
BTW, before this, my fave live album was prob Nils Lofgren's "Acoustic Live".