List requirements: A trilogy is comprised of three consecutive albums. I'm only including a maximum of one trilogy per artist, with no consideration for live or greatest hits albums. Each album must warrant at least an A- rating, and one album within each trilogy must warrant at least an A rating.
AC/DC Powerage, Highway to Hell, Back In Black
The Band Music From Big Pink, The Band, Stagefright
The Beatles Rubber Soul, Revolver, Sgt. Peppers Lonely Hearts Club Band
Big Star - #1 Record, Radio City, Third/Sister Lovers
Black Sabbath Paranoid, Master Of Reality, Volume 4
David Bowie The Man Who Sold The World, Hunky Dory, Ziggy Stardust and the Spiders From Mars
Built To Spill There's Nothing Wrong With Love, Perfect From Now On, Keep It Like A Secret
The Byrds Fifth Dimension, Younger Than Yesterday, The Notorious Byrd Brothers
Can Tago Mago, Ege Bamyasi, Future Days
Catherine Wheel Ferment, Chrome, Happy Days
Creedence Clearwater Revival Green River, Willy and the Poor Boys, Cosmo's Factory
Nick Drake Five Leaves Left, Bryter Layter, Pink Moon
Bob Dylan Bringing It Back Home, Highway 61 Revisited, Blonde On Blonde
Brian Eno Taking Tiger Mountain (By Strategy), Another Green World, Before and After Science
Al Green Let's Stay Together, I'm Still In Love With You, Call Me
Jimi Hendrix Experience Are You Experienced?, Axis Bold As Love, Electric Ladyland
Husker Du Zen Arcade, New Day Rising, Flip Your Wig
Iron Maiden The Number Of The Beast, Piece Of Mind, Powerslave
The Kinks Something Else, Village Green Preservation Society, Arthur
Led Zeppelin IV, Houses Of The Holy, Physical Graffiti
Bob Marley & The Wailers Catch A Fire, Burnin', Natty Dread
Metallica Ride The Lightning, Master Of Puppets, And Justice For All
Randy Newman 12 Songs, Sail Away, Good Old Boys
Pink Floyd Wish You Were Here, Animals, The Wall
Radiohead The Bends, OK Computer, Kid A
Ramones Ramones, Leave Home, Rocket To Russia
The Rascals - Collections, Groovin', Once Upon A Dream
Otis Redding - Otis Blue: Otis Redding Sings Soul, The Soul Album, Complete Complete & Unbelievable: The Otis Redding Dictionary of Soul
The Replacements Let It Be, Tim, Pleased To Meet Me
Rolling Stones Let It Bleed, Sticky Fingers, Exile On Main Street
Todd Rundgren Something/Anything?, A Wizard A True Star, Todd
Sigur Rσs Αgaetis Byrjun, ( ), Takk
Sleater-Kinney Call The Doctor, Dig Me Out, The Hot Rock
Slayer - Reign In Blood, South Of Heaven, Seasons In The Abyss
Sly & The Family Stone Life, Stand, There's A Riot Goin' On
Smashing Pumpkins Gish, Siamese Dream, Mellon Collie and the Infinite Sadness
Bruce Springsteen The Wild The Innocent and the E. Street Shuffle, Born To Run, Darkness On The Edge Of Town
Steely Dan Can't Buy A Thrill, Countdown To Ecstacy, Pretzel Logic
The Stooges - The Stooges, Fun House, Raw Power
Thin Lizzy Jailbreak, Johnny The Fox, Bad Reputation
Tindersticks Tindersticks, Tindersticks (The Second Album), Curtains
Stevie Wonder Talking Book, Innervisions, Fulfillingness' First Finale
U2 War, The Unforgettable Fire, The Joshua Tree
The Velvet Underground The Velvet Underground & Nico, White Light/White Heat, The Velvet Underground
The Who Tommy, Who's Next, Quadrophenia
Wilco Being There, Summerteeth, Yankee Hotel Foxtrot
Lucinda Williams - Lucinda Williams, Sweet Old World, Car Wheels On A Gravel Road
Yes The Yes Album, Fragile, Close To The Edge
Yo La Tengo Painful, Electro-pura, I Can Hear The Heart Beating As One
Neil Young On The Beach, Tonight's The Night, Zuma