If the girl is wearing a skirt or a dress or shorts or something else that shows off their legs, that's usually the first thing I notice, cause I like the look of thick, somewhat muscular thighs on a girl. Like a soccer player.
But if she's not wearing clothes that show off the legs, I look at the eyes and face first.
I would have to say their eyes if they aren't wearing a skirt or like short shorts or something that shows off their legs/rear. I think though when a girl has either green or blue eyes, or I've dated someone with one green eye and one blue eye. She was hot. But anyways eyes or legs and they have to have a nice stomach if they are at the beach or something, However I don't think that a muscular 6 pack on a girl is very attractive.
First the ass its shape and tightness. Then the breasts, their shape and tightness. Large ones are not a turn on for me, but all sizes are good. Then the eyes, if a girl looks me straight in the eyes it's a turn-on for me.
I've never liked my legs, I'm very muscular and tall, so my legs are quite toned and chunky. but all the boyfriends I've ever had, they've driven them crazy! I get loads of compliments from people especially the men.
I think sometimes women and men have different ideas on what is attractive.