If there was a way to make it work so that only you see it organized like that, then I would totally support it. I do understand the argument where (if it were shown as top friends sort of thing) that it would cause problems by those people who think that they're closer to you than they really are (in your book, anyway). But at the same time, it's your friends list, and you really should have all the rights in the world to determine who's a better friend to you out of your friends and have them displayed as such, although, since the argument holds up, it's whatever.