In no particular order:

Nirvana-Nevermind
Soundgarden-Superunknown
Tool-AEnima & Lateralus
Guns N' Roses-Appetite for Destruction
Led Zeppelin-Led Zeppelin IV
Red Hot Chili Peppers-Stadium Arcadium
Nine Inch Nails-The Downward Spiral
Linkin Park-Hybrid Theory & Meteora
Evanescence-Fallen
Disturbed-Ten Thousand Fists
Weezer-Blue Album
Pretty much every Rise Against Album
The Killers-Hot Fuss

I like every Tool album, but those two "stand out" to me.

But yeah, I have varied tastes in rock. Hybrid Theory was pretty much my gateway to rock back in my middle school years, and so the tragic news about Chester Bennington hit hard with me. I still feel a little sad sometimes more than a year later. 

After all these years, it's probably still The Blue Album, by Weezer.

edit - Just noticed the OP has it listed too. You are my new best friend.

Had to limit it somewhat, otherwise it could've been quite a lengthy list (even more so than it already is).

Tori Amos - Scarlet's Walk, Little Earthquakes, From the Choirgirl Hotel, The Beekeeper
Guns n' Roses - Appetite for Destruction
Alice Cooper - School's Out
Kate Bush - Hounds of Love
Children of Bodom - Follow the Reaper, Hatebreeder
Iron Maiden - Piece of Mind, Brave New World
Edguy - Hellfire Club
Miranda Lambert - The Weight of These Wings
Marilyn Manson - Mechanical Animals
Zakk Wylde - Book of Shadows
Meat Loaf - Bat Out of Hell
Metallica - Ride the Lightning
Kreator - Coma of Souls
The Offspring - Ignition
Fear Factory - Obsolete
Black Sabbath - Sabotage
Ozzy Osbourne - Blizzard of Ozz
Slayer - South of Heaven
Type O Negative - World Coming Down
Dismember - Like an Ever Flowing Stream

Songs in the Key Of Life - Stevie Wonder
The Jacksons - The Jacksons
Bad - Michael Jackson
Discovery - Daft Punk
Bush - Snoop Dogg
Off The Wall - Michael Jackson
Bim Bam Boom - Hall & Oates
Destiny - The Jacksons
G I R L - Pharell Williams
Invincible - Michael Jackson
Randem Access Memories - Daft Punk
Human After All - Daft Punk
In Square Circle - Stevie Wonder
Characters - Stevie Wonder
Thriller - Michael Jackson
Triumph - The Jacksons

A lot of thingies in Spanish.

My apologies, I missed it, but since that's a top 10 favorite albums thread and this is towards an indefinite number of beloved albums, it can still exist separately without being redundant.

B-52's...Cosmic Thing. INXS...Welcome to Wherever You Are. Smashing Pumpkins...Siamese Dream. The Cars...Candy-O. Madonna...Ray Of Light. Hole...Live Through This. Stone Temple Pilots...Core. Pat Benetar...Heat of the Night. ELO...Discovery. Billy Squier...Don't Say No.