Guys should not be wearing their hair long (long enough to get a pony tail out of it), I think it's really awful! For girls it's a question of what suits your face shape and what kind of personality you have and want to express.

i like longer hair better but it totally depends if the style fits your face. Shorter hair seems more mature

i like my guys with short hair. i've had long hair almost all my life. i want to shake it up soon. for fun.

Girls with long hair...guys with short hair

I think guys with short hair look better. Minax (Post#71) made a point i agree with, guys hair generally shouldn't be long enough to make a proper pony tail out of. Some guys can pull off the look really well and look good, but most just simply can't. It's safer to have short hair. That being said, if you're comfortable with it and think you look good, there might be someone else who does too. Just make sure it's clean. Dirty, greasy hair is just disgusting.

Girls have a little more flexibility with the length, but the styling is more complex. It's best you try to find a hairstyle that flatters your face shape and personality. Hairdressers can help you with that.

Ahh, it varies on the length I guess. I look just fine with short hair, and I look great with long hair.
Mid length worked fine fo rme as well.