Black Eyed Peas are pretty much the band I can stand the least out of all pop bands.
My Humps is the kind of song that makes me embarassed to be a member of the human race. All their songs are basically bad rapping over shallow looped dance beats with image-oriented demographic-pandering lyrics.
Most of the rap out there I have trouble getting into because I just can't get into all of the pro-street crime lyrics. The rap I do like is stuff like Outkast, Madvillain, Clipse, etc. Or older stuff like Public Enemy, Dr Dre, Tupac, etc.
But most rap today has taken the Puff Daddy/Notorious BIG model of taking basic drum and bass lines and yelling about how much money you have, how many people you've capped, and how many women you sleep with, and then cross-promoting your new guys by giving them appearances in songs by your already-established artists, without any sort of musical creativity involved.
(Like, Rapper A is already well known. Rapper A releases a video, featuring Rapper B. Rapper B is now famous, so Rapper B releases a video featuring Rapper C. Rapper C is now famous, etc.)