I detest Nicki Minaj's song, it's as if a chipmunk inhaled two quarts of helium and then switched on a high frequency dentist drill. Kesha cannot sing live to save her life.
Adele on the other hand is pure class compared to them. Plus, Skyfall is a smashing song.
I would have to agree and say that Adele is not even in the same realm as Nicki Minaj and Ke$ha. Nicki and Kesha use synthesizers and Adele sounds amazing even when she is live.
I have to admit, Nicki's voice isnt that good but she can really rap. She has some skill. Kesha on the other hand is okay, nothing special except maybe 3 of her many songs.
Adele on the other hand is basically the vocal queen. She's everything to the music industry. She has talent, AND shes beautiful.