Scent: Fresh from the shower clean is wonderful, but I love the scent of cologne too. Polo Black in particular will have me weak in the knees everytime.
Intellect: I love, love, LOVE a man with a sharp mind. Give me witty conversation, and intelligent debate, and I'll make a puddle in my panties.
Grooming: Nothing says "YUMMY" like a little man-scaping
A little bit of padding: Call me crazy, but I love a man I can hang onto. Other women are welcome to the weightlifters. A six pack might make for nice eye candy, but I like a little meat I can wrap myself around - *cough* yes, the pun was fully intended
Smile: A man doesn't have to spend thousands at the dentist, but regular visits to have the teeth cleaned keeps them nice and bright, and prevents halitosis. I could spend hours kissing a man, but if he isn't getting his teeth professionally cleaned regularly, a breath mint just doesn't help.
Attitude: Sex is an adventure! I love a man who isn't shy about being creative and having fun!
But the ultimate turn on for me: SELF CONFIDENCE. Hands down. Its kind of like the Supreme Courts definition of obscenity. Its not easy to define, but I know it when I see it, and it IS the ultimate aphrodisiac.