Well obviously personality. As I'm sure many will say the same too. No one is likely to openly admit publicly that they would just date someone for their wealth. Although I do know a fair few people that choose money over anything else.
I'm always attracted to people because of their personality. Although you've got to be realistic, we ALWAYS base people on looks at first, it's the first thing to judge a person on. You can tell whether they clean often, if they take care of themselves, how well groomed they are... looks will always be the first aspect.
While looks do come first, I always aim to look past this, I like to know what's beneath - who they are as a person. This is where the real beauty of someone comes out. You can have someone that looks stunning looks wise but the minute you learn more about them they become rude, arrogant and someone you're unlikely to ever view more than just a physically pleasing person. Then you could have someone that is 'ugly' (by stereotypical society standards) yet their personality is amazing and attracts you greatly. On the other hand you could have a mid-way mark. But that does not matter to me, personality beats everything.
Money will always be a part of a relationship that comes in to it. After all, if you're going to spend the rest of your life with someone you want to be financially stable with them, right? But then I suppose this is where I'm a fool (or not), I always look past this. At the end of the day, if I like someone, if I have a connection with someone, if I love someone - then whatever obstacles come between the relationship I will fight through because at the end of the day you can't let the rest of your life ruin you loving and being with someone else.