Vocally, Lyrically (regardless of whether they write their own music), Musically (rank their albums in order from best to worst). Dance-wise if they dance. As overall performers. Beauty-wise.
I'll go first.
Vocally: Beyonce > Aaliyah > Janet.
Lyrically: Janet > Aaliyah >/= Beyonce.
Musically:The Velvet Rope > Aaliyah > 4 > B'Day = janet. >/= Janet Jackson's Rhythm Nation 1814 > Control > One In a Million = Dangerously In Love > Age Ain't Nothing But a Number = I Am... Sasha Fierce.
Vocally: Rihanna >>> Adam Levine/Maroon 5
Lyrically: Rihanna >>> Maroon 5
Musically: Rihanna >>> Maroon 5 (Loud >>> Good Girl Gone Bad: Reloaded >>> Songs About Jane >>> Unapologetic >>> Talk That Talk >>> Rated R >>> Hands All Over >>> It Won't Be Soon Before Long >>> A Girl Like Me >>> Overexposed >>> Music of the Sun)
Dance Wise: Rihanna >>> Maroon 5
Performance Wise: Rihanna >>> Maroon 5
Beauty: Rihanna
Musically: In The Zone > Blackout > Stripped = Bionic > Britney > Circus > Femme Fatale > Lotus > Back to Basics > Oops I Did It Again > Baby One More Time > Christina Aguilera
Dance-wise: Britney > Xtina
Performance-wise: Britney > Xtina
Beauty: Britney > Xtina
Ariana is my 3rd fav but she hasn't really released enough material to judge
Vocally: Nelly > Katy
Lyrically: Nelly > Katy
Musically: Loose > Folklore > Teenage Dream > Mi Plan > One Of The Boys > Whoa, Nelly!
Dance-wise: neither are dancers but Nelly definitely has some natural sexuality in her moves
Performance-wise: Nelly is the better vocalist but Katy is more creative in this regard
Beauty: Loose Nelly = Katy > out of shape Nelly
Hahaha, ahhh. My faves (Manson, Gaga), despite being two separate genres, are pretty similar.
Except for dancing. Marilyn Manson doesn't dance.
I'd say neither are conventionally attractive.
Performance-wise, they're both VERY theatrical, and make an art out of it.
Lyrically, they are very in-touch with and make references to modern culture, mass media, and of course DEATH, quite a bit.
Both list David Bowie as one of their main influences.
They both also use, or have used, the outer-space/alien theme that goes back to David Bowie's Ziggy Stardust.
Musically: Stripped > The Fame Monster > Back to Basics > What we've heard of Trouble > Bionic > The Fame > Perfectionist > Christina Aguilera > Lotus > Born This Way
Dance-wise:lol none of them really but Gaga > Christina > Natalia
Musically: Butterfly > Back to Basics > The Fame Monster >> Daydream > Mariah Carey > Stripped > Emotions > The Emancipation of Mimi > Born This Way > Christina Aguilera > Memoirs of an Imperfect Angel > Music Box > The Fame > Bionic > Lotus > Glitter > Lotus > Rainbow > E=MC2 > Charmbracelet
Vocally: Nelly > Katy
Lyrically: Nelly > Katy
Musically: Loose > Folklore > Teenage Dream > Mi Plan > One Of The Boys > Whoa, Nelly!
Dance-wise: neither are dancers but Nelly definitely has some natural sexuality in her moves
Performance-wise: Nelly is the better vocalist but Katy is more creative in this regard
Beauty: Loose Nelly = Katy > out of shape Nelly
Not Nelly basically beating Katy out at everything
Musically: B'day > 4 > I Am Sasha Fierce > The Fame Monster > Fantasea=1991 > Dangerously In Love > Young Love > Born This Way > Victory > Planet Jedward
Dance-wise: Beyonce > Lady Gaga > Jedward > Azealia
Performance-wise: Beyonce > Lady Gaga > Azealia > Jedward
Pretty sure Bey could execute every move the other two have done, can't say the same about them hitting Bey's choreo. Especially Aaliyah, her dancing was that slow 90s groove type ****, pretty easy, comparatively.