I owned a bunch of Alan Parsons Project albums. The two of them that I consider to be their best have made it into my CD collection - I Robot and The Turn of a Friendly Card.
I Robot was a stoner classic - spacey, mysterious and lush. I listened to it for the first time in a long time recently and I think it still holds up as a great-sounding album.
It was my wife who dug out The Turn of a Friendly Card. We listened to it several times, and I have not been able to get some of the songs out of my head. 'Time' is gorgeous, and so is the two-part title track that bookends the song suite on the second side. 'The game never ends, when your whole world depends, on the turn of a friendly card'. A killer melodic hook.
The Project's first album, based on the stories of Edgar Allan Poe, was also very good. The Raven, with its vocoder-enhanced voice, is effectively creepy.
Overall the Project's body of work is a bit uneven. They did venture successfully into the commercial arena with the Eve and Eye in the Sky albums, but I think the creative genius of the above albums was left behind in the process, unfortunately.