You're right, I probably haven't heard a lot of Manson, and taste is speculative; Point is, if I'm trying to learn a song to play, I don't think there is much in the MM catalogue that would be easy enough to copy.
A couple of us (me on drums, a kid on guitar and another on bass) were jamming yesterday, trying to work out some stuff. Mostly AC/DC, G'n'R and stuff like Paranoid from Black Sabbath. We were also trying to get a 12 yo involved playing some AC/DC, but he'd need to learn how to follow what they are playing.
Shit, i've only been playing since Jan 09 and still have a lot to learn, but we didn't sound half bad.
One example was 'November Rain', which I'd only tried once before.