In matters of selecting a spouse, both men and women have the right to choose the right partner. It is known in Islam whose name is 'kufu' (viable and harmonious), and a guardian has the right marriage partner for her daughter to pick someone who sekufu, although the meaning kufu most common among the scholars is co-religionists.
Other meanings such as matches, is also the meaning that can not be denied, thus SELECTION PROCESS THAT HAPPENS TO ANY MALE OR FEMALE. On the other hand that choosing a life partner by considering the various sides, provided at a reasonable considerations as well as Islamic, the representation is a necessity of life and liberty of God which He bestowed on every human being, including in choosing a husband or wife. Aisyah Ra said, 'Marriage is the essence of servitude, then he should see where his honor will be placed'.
To further solidify the choice if we are confused we can do good istikhorah prayers at midnight and in the beginning, and do it repeatedly. If it has been done many times so DEFINITENESS THAT THERE IS A GOD willing, HIS INSTRUCTIONS, AND THAT'S MORE FOLLOWED. But keep in mind, that information is dominant in a person are often more influential on istikhorah, therefore it needs to be done many times.
Prophet also said, 'He who match his honor with the ungodly he had cut her womb' (HR Ibnu Hibban). The Prophet also gave consideration to a sahabiyah who came to him as he requested consideration of two people who would propose, then the Prophet replied, 'As for Muawiyah ibn Abi Sufyan, he's very light hand (aka easy to hit), while the other is that poor people do not have a lot of treasure. " Then the Prophet married her to Zaid bin Harithah.