First artist that came to my mind when I saw the title of the thread is
Rihanna just for a fact that she didnt produce a good album. Good album where EVERY song is incredibly good. I miss that cause I like her you know. Im still waiting lol

Imagine that killer album if you put her greatest songs in one album, that would be like... historical happening lol. Rihanna please do this.
Lady Gaga 'artistry'. I appreciate the woman, but she talks art but in music nothing happens.
I agree about
Adele, I find her music boring, which is sad cause her personality is fun lol.
I love
Britney to the death, but her song writing skills are overrated by her fans.
I love
Justin Bieber to the death too lol, he's my everything but I find his looks incredibly overrated, he's cute, but thats about it.
Gotye and his blabla I used to know.
Coldplay and all those 'rock' 'indie' 'alternative' bands for being 'super genius' where you cant separate their tracks from each other.
Lil Wayne. I think this speaks for itself.
Katy Perry, David Guetta, Pitbull...
I cant think of anything else right now, I cant believe I mentioned my favs too.