Rihanna has the hits but her behavior, personally is very manufactured

. Madonna was a natural bad ass bitch until she met Guy Ritchie.
Katy Perry writes infantile music in her 30's just like Madonna in Cherish and Dear Jessie or in her 50s

but Katy Perry ain't the next Madonna anytime soon. (forced prostitution, her power apparently waning already, etc)
Beyonce is overrated AF, let me stop before my eye's blood vessels explode.
Gaga.... she is the closest to Madonna for me, she has managed to do so much in so little (slaying, big fanbase, stadium dates, flopping), the thing is...Gaga is NOT beautiful, she will never bee a sex icon like Madonna was for 10 years or so.
Taylor Swift

Miley: Hew