Kylie Minogue
Marina and the Diamonds
Lana Del Rey
Sky Ferreira ()
Kesha
The following artists have 1 bad album so missed the list:
Gaga (The Fame)
Britney (Britney Jean)
Rihanna (A Girl Like Me)
Beyonce (Dangerously in Love)
Nicki Minaj (Roman Reloaded)
Ariana (Yours Truly)
Katy Perry (One of the Boys)
Lykke Li (Youth Novels)
Madonna (Like a Virgin)
Mariah Carey (Glitter)
Gaga, Abel and Tinashe don't have any
Madonna has Like a Virgin and Like a Prayer (LAP is not that bad but it's kind of her second weakest)
Rihanna has MOTS and AGLM (they have a few bops but even the navy refers to them as mixtapes )
Britney has BJ
Beyonce (I Am... Sasha Fierce is good despite what the BeyHive says)
Lady Gaga (ARTPOP and Joanne are both good despite what ATRL says)
Lana Del Rey
Fiona Apple
Florence + The Machine
Kate Bush
Bjork (if the Drawing Restraint 9 soundtrack isn't included)
Tori Amos
Janelle Monae
Sophie Ellis-Bextor
Paloma Faith
Gaga and Rih (excluding the mixtapes). Gaga has Artpop, which admittedly isn't that good looking back on it, but I wouldn't say it's bad.
Oh, and Lorde