Hmmm... Probably Xtina or Beyoncé. I loved both at one point, but now I really can't get into their music. It's not them I dislike, it's their current music.
I voted Brit because her lack of emotion just turns me off. Yet some of her songs are bops. While I can't say I really like any of Xtina's song besides Fighter.
I was gonna vote for Katy because I abhor most of her music and live performances but some of her songs are cute and she seems like a sweet girl. I voted for Miley because everything about her annoys me to no end.