If success just means ambition and making a living then I said average in both. Although I have been single for awhile because I won't settle. I have to be attracted to the guy, whether he is universally attractive or not, and he has to have a job/career or ambitions to begin a career at some point. So both, but he doesn't need to be super hot and/or super successful.
Oh god.. you made this harder than it should be. I don't care about his income as I would like better to take care for myself and the looks.. it depends, sometimes I'm attracted to guys that other girls would rate below average. It really depends mostly on how you behave. And, I might be old school but respect, loiality and manners are still cool! To simplify this, I'd rather choose a guy pleasantly looking.