The question is "怎樣的女仔會令你一見傾心" not to get a wife. It's more difficult to get a wife than courting a girl. It's hard to define what kind of girl though. When the love arrow hits you even the girl has none of the things you like, you will still fall in love. But I think the most important thing is appearance, at least someone you feel like you can be with comfortably.
The thing is "一見傾心" does not always lead to marriage and marriage is not always "一見傾心".
The question here might be best rephrased "what quality girls have would make you 一見傾心 and you would want to know her better and maybe develop a relationship with her"..