I have attended family wedding's and the men wore them upwards and the woman wore them facing down. My Auntie who is up on all the ettiquette said that this is the correct way of wearing them. I don't think it really matters I guess some still see it as tradition from years ago like my Auntie (The way they've always done it).
Other wedding's I have been to no-one seemed to have a clue what I was going on about so I had mine facing upwards so I wasnt the odd one out lol