First of all, I pretty much like anything that's rock, but my main branch of interest is progressive rock. Rush is my favorite band of all time, gotta love Neil Peart badass drummings! With that said though, popular rock bands I hate include The Beatles, The Rolling Stones, The Monkees, The Who, The Kinks, and Yes (well, to an extent). The Beatles are just way too overrated, critics everywhere claim they did so much to revolutionize the music industry and that they had a valuable humanitarian image when yet they were just another British boy band when they first arrived in America and played on The Ed Sullivan Show. I have no idea how their image spread across like wildfire like it did after that, probably because their songs were so "innovative" and "creative" after they tripped on LSD for the first time; everybody knows that "avant-garde" is just another fancy term for "shit".
I pretty much hate anything mainstream/overplayed. Songs that used to be epic and compelling like "Don't Stop Believing", "Stairway To Heaven", "Welcome To The Jungle", and "Basket Case" have turned into money-whoring commercials. This is partially why I hate labels in general; they take away the imagery of the music and instead focus on creating songs for products rather than enlightening messages for the masses.
My household growing up consisted of non-stop mainstream pop and underground rap shit. Eminem was the "big thing" with my siblings and I just don't get why. Sure, he has some of his moments, like "Fack". That's a hilarious song. But when he then talks shit about his wife Kim (who never deserved any of his criticism to begin with) or tries to be the "greatest white thug rapper" when he teams up with Dr. Dre, there's just one question that comes to me: What IS he rebelling about? Why is he so mad at society? He never really explains his life through him, he uses a persona (Slim Shady) and overexaggerates what exactly happened to him during childhood. He wasn't a product of the streets like NWA was. His claim to fame was his freestyling rapping, and the fact that he was white, so naturally, white suburban teenagers who get a kick of trying to feel "edgy" cling on to him even if they hate other rappers like Busta Rhymes or Snoop Dogg. I just don't see his music as anything significant.
With that being said, I just hate rap in general. I used to like it in middle school mostly because of the instrumentals, but as I got older and actually started to understand the lyrics and how grossly mundane and primitive they were written as (and due to the fact that most rappers aren't even "street life" veterans), I couldn't stand to take it anymore.
Can't think of anything else at the moment. I really don't think too much of Justin Bieber. The people who say his material "isn't music" are idiots because in a terminology sense, it is. Just because you don't like a certain genre doesn't mean it's not music.