well first lemme say, if you are considering flaming me, or even trying to debate my opinion on this, IT'S MY OPINION and second of all, you won't change my mind...resorting to saying 'my bands' suck wont' change it, telling me what a musical genuis said 'bad band' is, won't change my mind.. you can't change my mind because it is my opinion, and i will ignore any 'negative' posts after this, whether it be insulting bands i've said i liked, or calling me ignorant or the such for naming the bands i think blow (sorry, i get in this argument all over the boards without even trying... i tell someone something, that's rock solid hard truth and they try to get me back by saying [lol robert it's not about you, this argument has been used on me so much] "well how much can someone who thinks slipknot is a good band really know?!)

with all that said...

ac/dc
U2
coldplay
the beatles
rage against the machine
brand new
(almost any punk bad for that matter...)
(most every 80's hair band, with the exception of metallica)
AFI (with the exception of like 2 songs that are just ok)
foo fighters
the used
most metal band suck as well, few exceptions (i think alot of people here have some image in their head that i'm some hardcore metal nut lol... far from it.. alot of it is just ok, the rest sucks ass.... there are few exceptions to this, slipknot is one of my fav bands, dunno really why... COF is really good as well... but most fuckin blow... i can bang an instrument and sing while i got a cold and do just as well)
all american rejects
green day
aerosmith