I've always been a fan of GnR and always thought Duff was a good bass player and a talented musician, but probably not the brightest bulb in the package. Well, I've been reading his column in Seattle Weekly and the guy is pretty bright and has some interesting things to say.
http://blogs.seattleweekly.com/reverb/duff_mckagan/
It is always cool to find a new side to people you admire.