What's your favorite album cover art ?

Orleans S/T - everyone's favorite

Love Roger Dean, but in honor of the 45th anniversary of this album, I nominate the gatefold of the Allman Brother's "Eat a Peach".

Country Life

Mahogany Rush, Strange Universe

I used the Roger Dean covers in the 70s behind an aquarium as the fit was perfect (15 gallon?), and they looked the part. Consequently all of my old Yes LPs have a little water damage on the top edges of the covers.

I have two in my collection: Cream's Disraeli Gears and Kansas self titled first album (contrary to poster above, the best Kansas album). I love the colors and clothes on the Cream cover; the photo of the band with a storm approaching is pretty awesome on Kansas' debut.  

2nd,

(The) Cream-  Disraeli Gears
The Beatles- Sgt Pepper

Just as an interesting aside: Did ya hear how Ahmet Ertegun, president of Atlantic Records, characterized Disraeli Gears when Cream turned in the albums tapes? Psychedelic h*rs*sh*t is what he said! Atlantic released it anyway, and consumers disagreed. 

John Klemmer-Waterfalls

Dark Side of the Moon

Beautifull album covers: 

1) Arbour zena (Keith Jarrett) ==> ECM 
2) Officium (Jan Garbarek & Hilliard ens.) ==> ECM 
3) Woyaya (Osibisa) 

remark: 
==> ECM record's in general have nice covers
(One of the reasons I prefer vinyl) 

I do like "Smell the Glove" by Spinal Tap. 

Most Linda Ronstadt albums. 

Me too avanti, me too.

...
Santana: first 4 covers, 1969-72
The Moody Blues: To Our Children´s Children´s Children, 1969
Banco del Mutuo Soccorso: all 70´s covers
De De Lind: Io non so da dove vengo è non so dove mai andro... 1972
Humble Pie: Smokin´, 1972
West, Bruce & Laing: Why Dontcha, 1972
Mauro Pelosi: La stagione per morire, 1972
Metamorfosi: Inferno, 1972
Quella Vecchia Locanda: both albums 1972-74
Area: all 70´s covers
New Trolls Atomic System, 1973
Murple: Io sono murple, 1974
Il Volo: both albums 1974-75
Hurriganes: Roadrunner, 1974
Camel: Mirage and Snow Goose, 1974-75
Procession: Frontiera, 1972
Gravy Train: Staircase to the Day, 1974
Be-Bop Deluxe: Futurama, Sunburst Finish & Modern Music, 1974-76
Mahogany Rush IV, 1976
Rick Wakeman: King Arthur and the Knights of the Round Table, 1975
Paolo Tofani: Electric Frankenstein, 1975
Celeste, 1976
Return to Forever: Romantic Warrior, 1976
Blue Öyster Cult: Agents of Fortune, 1976
Journey: Captured, 1981
...   

Loreena McKennitt - A Midwinter Nights Dream
Todd Rundgren - A Wizard, A True Star
Kansas - Masque (lots of detail)
Rush - Caress of Steel (Tolkienesque)
Andreas Vollenweider - Book of Roses
Anthony Phillips - The Geese and the Ghost
Led Zeppelin - Presence (always liked this one)

...
Caravan: In the Land of Grey and Pink, 1971
Caravan: For Girls Who Grow Plump in the Night, 1973
Renaissance: Scheherazade and Other Stories, 1975
Rush: Fly by Night, 1975
Rush: Farewell to Kings, 1977
Kansas: Monolith, 1979
Blue Öyster Cult: Cultösaurus Erectus, 1980
Journey: Escape, 1981
Michael Schenker Group, 1981
...   

Rush "Moving Pictures"

Workers are moving pictures (relocating)
Onlookers are moved to tears by the moving pictures
backcover: Making a Motion Picture of the moving pictures

Spirit, Twelve Dreams of Dr. Sardonicus

N

The more I look at it, the more I love

Tears for Fears, "The Seeds of Love"

Such a snapshot of the bright and colorful late-80's/early-90's motif and so detailed in terms of symbolism and ideas!

That’s pretty ’clear’: Faust s/t on original German polydor (or later repress on recommended records).

Hawkwind  -Space Ritual and many of their other covers like Quark, PXR5, Astounding, Hall etc.

Google "Roy Harper Flashes from the Archives."

Big Brother And The Holding Company "Cheap Thrills"

Bob Dylan and The Band "The Basement Tapes"

I like a lot of the older Blue Notes

Geoffkait, I thought you were color blind.
Jasman, I agree! Anything by Neon Park which includes many Zappa albums like Weasels Rip My Flesh and Overnight Sensation. Lowell George met Neon when he was playing for Zappa. 

Roger Dean