A confident walk, eyes that suck you in, a smile that knocks you out, and a laugh that brings you back to life again. That’s what rings my bell!
After that: Tall, lean, small breasts, and long, long hair makes for a really nice package, but all those are quite secondary, and I’m tremendously attracted to women, in all their wonderous variety. 
I can tell you what the most beautiful girl I’ve ever met looked like, and how I believe she has influenced my current taste in women (I know this isn’t exactly the topic, but the OP has inspired me to talk about beauty).
She was probably around 5’4", DARK hair and DARK, DARK eyes. She was usually very pale, but not in an unhealthy way. Her smile would brighten up the room, and her hair was so soft and beautiful.
Also, she had a butt that some might consider to be rather large (although I hardly noticed it after the first glance).
While beauty can come in many different styles, it’s not just the body that makes so many of us men simply LOVE to look at women. As you might guess from above, I love burnettes with dark eyes, although any color eyes to me look beautiful under dark hair. And a great smile can be like a glimpse into her soul.
Oh yeah, I really like the a girl with a nice butt on her. And really nicely formed thighs and calves; the kind, like Sgt. Frank Drebin of Police Squad once said, “…you’d like to suck on for a day.” 
Short girls. MMMMMMMM, short girls. My girlfriend is 5’2" (I’m 6’2") and just adorable. I’m also a big fan of lucious, get-your-hands-on-em hips and strong legs, both of which my girlfriend has.
Another thing she has are marvelously sparkly eyes, which is both a blessing and a curse. They’re beautiful, and I love them, but the problem is that I can tell that her marvelously sparkly eyes also make other guys think that she’s interested in them. grrrr. must kill other men…
I’ve had this discussion a few times, and for some reason even though I always tell the truth hardly anyone (female or male) ever believes me.
First thing I notice about any woman: her voice. An attractive voice goes a long, long way with me. Whereas if she has an unappealing voice, it’s a big turn-off.
Second thing I notice: her chat, her conversation, what she talks about, how she talks about it, what’s firing under the lid. A woman can be (by prevailing standards) plain as the back of an envelope, but if she interesting and offbeat and intriguing and funny and obviously has good grey stuff, she’s attractive. Conversely, looks don’t count for much if she’s got nothing to say.
Third thing: hair, I guess (I have a very specific fetish about hair) and eyes and the smile.
Her figure? Couldn’t care less. Extremes either way are unappealing, only because they tend to suggest there are ‘issues’ going on, but otherwise who cares? But the emaciated, All McBeal stick-insect look does NOTHING for me or any man I’ve ever met. Damn it, we like some curves, some presence, some bits that go in and out that we don’t have!
Make-up? Someone who’s beautiful, inside or out or both, doesn’t need it and probably doesn’t use it. For someone who isn’t beautiful, no amount of make-up is going to make one iota of difference. If the make-up is not for male benefit, but for herself, her own sense of how she feels about herself, then okay, but there are better yardsticks.
How she dresses, fashion sense etc. I honestly couldn’t care less. I’ve been out with supremely stylish fashion queens, and with girls who wouldn’t know a designer outfit if it bit them. The latter win hands-down, every time. Common sense is always more attractive than fashion sense, and it seems hard (impossible?) to have both.