Best Live Album Ever...

judy at carnegie
bowie: live at santa monica
dead: live dead (or better still: dix pix vol 2: 2/13-14/70, alt: rockin the rhein)
JGB: bay area 78
phish: colorado 88
allmans: fillmore east
sinatra and sextet in paris
neil young: massey hall
and led zep: how the west was won

Sinatra--the Studio Album

A lot of good ones mentioned. I'll add Poco's Deliverin'.

Robin Trower "Live"
Gentle Giant "Playing the Fool"
ditto on Little Feat "Columbus"
ditto Santana "Lotus"
where-as I love YES, generally, "YESSONGS" has to be one of the worst sounding live albums of all time... sounds like a 4-track cassette with bad tape and lots of limiting. Having said that, Steve Howe's performance on "Yours is no Disgrace" and the electric version of "Roundabout" are rip-roaring make-me-feel-18-again performances.
Hey how about Bob Marley's "Babylon by Bus" UK pressing with BIG bust a gut bass.

Emmylou Harris - At The Ryman