I also did informal, and found out later about all the other houses and then wished I'd done formal. I probably would have gone AGD, what a fun group of people w/ great sisterhood. (I'm an ADPi).
It's really great to read through this and see so many people have respect for my GLO, though. I'm really involved now in my alum group; it's awesome to hear that we have impressed people on a National level. Thanks, ladies!