I know we do these quite often but since we have this new subforum - perhaps we can sticky this, everyone can have their own space to post their list (however long it may be), and update accordingly. I'll make one for songs, too.
Favorite, best - there's no difference.
I'll rattle off a quick top 15 without thinking all too hard about it. Alphabetical. One per artist (for now):
Gold: Greatest Hits / ABBA
Sgt. Pepper's Lonely Heart Club Band / The Beatles
Vespertine / Bjork
Blackout / Britney Spears
She's So Unusual / Cyndi Lauper
Heroes / David Bowie
Bad Girls / Donna Summer
2001 / Dr. Dre
Welcome to the Pleasuredome / Frankie Goes to Hollywood
Blue (or Court and Spark?!) / Joni Mitchell
Hounds of Love / Kate Bush
IV / Led Zeppelin
Erotica / Madonna
To Bring You My Love / PJ Harvey
Purple Rain / Prince
I guess using Gold for my ABBA pick is "cheating," so if I went for a studio LP it would definitely be The Visitors.
This is already feeling so incomplete. I'm gonna try to do a definitive top 100 within the next few months...or something.