Rihanna was a fashion icon and turning dark before Gaga was using all those crazy customes (can we say DISTURBIA)?, not to talk about that Gaga ripped it all off by less known artists like Roisin Murphy (I won't even talk about the ones that everyone knows like Madonna Grace Jones and David Bowie)
Ke$ha has nothing to do with Gaga, Ke$ha ripped Uffie in all types of shapes and forms
And Janelle Monáe? Really? Janelle is one of a kind, I don't see any similarity, she is in a different world in a total different level
I like Gaga but the media should stop treating her as the 2nd coming of god or like the creator of everything
I really thought she was gonna flop because she was so weird, but she's even weirder now and way more successful. Her music ***** on the other pop girls imo. The Fame Monster was the first pop album I've ever purchased 
I don't really like most of the stuff she's doing right now and I don't agree with most of her ideas or what she stands for, but there's just no denying that her music is great. 
