AFI's always been in my top three or five favorite bands for as long as I can remember, but Sing the Sorrow puts them on an even higher shelf. They proved that they can make extremely unique music while being commercially successful. One band I never expected to catch on was AFI mainly because Davey Havok's voice doesn't really fit the mainstream stereotype, but I think signing with Dreamworks helped a ton.

(SPOILER)...biased against Christians? Ban me too.