Rated R by Rihanna LOUD by Rihanna Unapologetic by Rihanna Electra Heart by Marina & The Diamonds Ray Of Light by Madonna Confession On A Dancefloor by Madonna Blackout by Britney Perfectionist by Natalia Kills The Fame Monster EP by Lady GaGa DEMI by Demi Lovato 4 by Beyoncé
In The Zone, Futuresex/Lovesounds, The Fame Monster, Electra Heart, Blackout, No Strings Attached, Shrines, I Love You, Born to Die, Thirteen Tales of Love and Revenge, Rated R, Confessions on a Dance Floor etc. Its all a matter of taste tho.
In the Zone
Bon Iver
Viva La Vida or Death and All His Friends
Sigh No More
Stripped
The Fame Monster
Blackout
I'm Not Dead
Funhouse
Rated R
Good Girl Gone Bad
Under My Skin
Back to Black
E=MC2
Continuum
Confessions on a Dancefloor
Riot!, Brand New Eyes, Paramore, Love Is Dead, Aaliyah, Tasty, Danity Kane, Welcome to the Dollhouse, One of the Boys, Teenage Dream, Rated R, The Fame, Transalanticism, This Is War, Thriller, Absolutes. Etc.
I don't believe in filler but I wanted to list these albums because I consider them flawless.