I'd say personality is the most important thing, hands down. If you don't have a good personality, I don't care how hot you are, I ain't touching that. But in terms of physical appearance, a well-rounded package is needed, but a nice face has ever-so-slightly higher priority than anything else.
The most important for both females & males would have to be the face; obviously. Through the ages the body will often change but along with personality you will be stuck with the face. Favorite feature of the face is the lips. I'm attracted to voluminous bottom lip for some reason.