The vast majority of the time I prefer long hair on women. Some look really good with it short, but they would be attractive no matter what they do with it. I also think the vast majority of women look better with their hair down than whatever fancy hair-up style is considered acceptable for formal occasions.
For me ... I need to scan a picture of me with short hair and one with it long. With long hair I look like a rock star; with short hair I look like a troll. I think my face has actually gotten significantly more attractive since high school, but maybe it's just because I'm not so fat anymore.
I don't have any old pictures of myself, and this is all there is online, so here's a before and after:
Old pic right after my nose was broken at a concert. He took the picture too early and you can't see the blood running down the back of my throat.
Canada, age 19, first legal drink
After I decided to grow it long, but before it got there
Still fat, and with a bottle of my homebrew absinthe that earned the nickname "The Green Death"
Comparing height with a short friend who's standing on the couch next to me as my gigantic brother looms behind us. I weigh 20 pounds less now than I did then.
The hat stayed at Party City