I collected approximately 22 lists of “Best Music of 2003” and combined them into one meta-list.  Here are the results, organized with the recordings on the most lists on top, and so on.  The numbers in bold indicate how many of the original 22 lists the recording was on.  An asterisk means I own it.

On 20 Lists
Outkast – Speakerboxx/The Love Below*

On 16 Lists
The White Stripes – Elephant*

On 12 Lists
Fountains of Wayne – Welcome Interstate Managers*

On 11 Lists
Radiohead – Hail to the Thief*

On 8 Lists
Warren Zevon – The Wind

On 7 Lists
Lucinda Williams – World Without Tears*

On 6 Lists
Basement Jaxx – Kish Kash*
50 Cent – Get Rich or Die Tryin’
R. Kelly – Chocolate Factory
The Shins – Chutes Too Narrow*

On 5 Lists
The Bad Plus – These are the Vistas*
Dizzee Rascal – Boy in Da Corner
Annie Lennox – Bare
Damien Rice – O
Yeah Yeah Yeahs – Fever to Tell*

On 4 Lists
Blur – Think Tank
Brand New – Deja Entendu
Cat Power – You Are Free
The Darkness – Permission to Land
Death Cab for Cutie – Transatlanticism*
Electric Six – Fire
Nelly Furtado – Folklore
Al Green – I Can’t Stop*
Beyonce Knowles – Dangerously In Love
The Libertines – Up the Bracket
My Morning Jacket – It Still Moves*
The New Pornographers – Electric Version*
The Postal Service – Give Up
Josh Rouse – 1972*
Wayne Shorter – Allegria*
The Strokes – Room on Fire*
Rufus Wainwright – Want One

On 3 Lists
Belle & Sebastian – Dear Catastrophe Waitress
Bubba Sparkxx – Deliverance
Johnny Cash – Unearthed
Dashboard Confessional – A Mark, A Mission, A Brand, A Scar*
Miles Davis – The Complete Jack Johnson Sessions (rec. 1970)
Drive-By Truckers – Decoration Day
Missy Elliott – This Is Not a Test
Jay-Z – The Black Album
Junior Senior – D-D-D Don’t Stop the Beat
Damien Jurado – Where Shall You Take Me?
The Mars Volta – De-Loused in the Comatorium
Metallica – St. Anger
Ms. Dynamite – A Little Deeper
Perniece Brothers – Yours, Mine and Ours*
André Previn – Violin Concerto (Boston Symphony Orchestra; Anne Sophie Mutter)

2
Ryan Adams – Rock and Roll
AFI – Sing the Sorrow
Blink-182 – Blink-182
Café Tacuba – Cuatro Caminos*
John Cale – HoboSapiens
Clem Snide – Soft Spot
The Constantines – Shine a Light
The Distillers – Coral Fang
Four Tet – Rounds
Geoff Muldaur’s Futuristic Ensemble – Private Astronomy*
Macy Gray – The Trouble with Being Myself
Anthony Hamilton – Comin’ from Where I Come From
Juana Molina – Segundo*
Peaches – Fatherfucker
Liz Phair – Liz Phair*
Prefuse 73 – One Word Extinguisher
Puffy Amiyum – Nice
The Rapture – Echoes
The Ravonettes – Chain Gang of Love*
The Sleepy Jackson – Lovers
Spiritualized – Amazing Grace
Ted Leo & The Pharmacists – Hearts of Oak
The Thrills – So Much for the City
Various Artists – Lost in Translation Soundtrack
Various Artists – 1970s Punk Revolution Compilation
Miroslav Vitouš – Universal Syncopations
Gillian Welch – Soul Journey
Warren Zanes – Memory Girls
Zwan –  Mary Star of the Sea