AN definitely brighter and has a little less of a huge hump in the low mids, though it does have more punch than say a 36th bridge.
Also noticed it can get closer to the strings without creating any weird thuddy issues like most pups can when set very close. That means it can get pretty hot output wise, as closer to the strings means more output. The chart says it is slightly less hot than a 36th bridge, but I played a 339 with a 36th bridge (backed off a bit as they have to be) back to back with the LPJ with AN bridge, and the AN seemed noticeably hotter due to being able to be closer to the strings without artifacts.
Was just playing AN in the bridge of my LPJ, sounds friggin' monstrous, definite quintessential PAF on steroids thing going. Articulate but not piercing highs, strong but not overly 'humpy' lows.
Sounds awesome in the right guitar.