Bob Dylan=can't stand the man, though I get why he was influential/important.

The Beatles=not overrated at all. Best band ever in so many ways. It's the Rolling Stones I can't stand. They have a few good songs, but I just can't fucking stand them most of the time.

My controversial opinions:

Slayer=overrated as fuck.

Iron Maiden=ghastly, horrible band who rip off Queen without ever realizing that Freddy Mercury was having a laugh and not taking himself seriously. All music that descends from Iron Maiden (power metal) makes me cringe.

Stephen Malkmus=horrible.

Limp Bizkit=awesome.