Personally, as a guest, if I don't know them, I'd prefer that they be listed in the order that they come down the aisle, or the reverse - the order in which they stand. If I don't know who they are, putting them in alphabetical order isn't going to help me, unless they're wearing name tags too.
When I was designing our programs, someone posted this on TK and I had to go back and change everyone's name so they were in the order in which they would process in. Luckily we hadn't printed them yet.
Re: Wedding Program/Order of Attendants
Miss Mrs.
Dresses may be easier to take in than let out, but guest lists are not. -- kate51485
Infertile, living childfree, advocating like a BOSS