Haha... this thread makes me laugh. A few notes:
1) Blink 182, Sum 41, Good Charlotte, Simple Plan, etc. are NOT talented. Those of them that write their own stuff use totally cookie-cutter riffs and lyrics... it doesn't take talent to write an unoriginal song.
2) Whoever said "Tool, Sum 41, (etc) and everything else on the radio" - Tool gets played on the radio like... once a month, if that. What the [bleep]?
Okay, moving on. The bands I hate the most. Well, I try not to dwell on bands I don't like, but there are two in particular that I just can't get over. They would be:
Godsmack (for copying their name directly from Alice in Chains (ever heard the song "God Smack"? And I love how they denied it was from that until Layne Staley died and then they were like "Yeah actually it was from that song") and for copying their sun logo from the one Layne Staley drew, and for trying to sound like Alice in Chains (but failing cause they SUCK, and cause no one can sing like Layne Staley), and for adding insult to injury by putting out an acoustic EP, kind of like (you guessed it) Alice in Chains. Godsmack, please die.)
and
Creed (I don't think I even need to explain this one.)
Oh, and also all Christian rock. It doesn't work.
Now, I also want to say Offspring... but I can't. I really do love Offspring, their first 4 albums were amazing, and even Americana wasn't so bad. But my god.... Conspiracy of One and Splinter are some of the worst pieces of crap I've ever heard. So for that, Offspring makes my hate list. Because they were so good, but they sold out, and now they suck.