I was fortunate enough to see David Gilmour play live this past October at Hollywood Bowl in Los Angeles. The energy when he played Comfortably Numb was absolutely indescribable.

I, too, think that Animals is a masterpiece. Also agree that it's "overlooked" (though some others in the comments seem to have a different assessment) -- most people I know can name tracks from Dark Side and The Wall but that's about it. The songs are too long for radio.

"Dogs" is my favorite Pink Floyd song of all time, both lyrically and Gilmour's playing.

"You have to be trusted by the people that you lie to. So that when they turn their backs on you, you'll get the chance to put the knife in."