Could Donna Noble Lead The World?

In Doctor Who you have a whole host of interesting and complex characters, but which of these characters would be best suited to lead a country? Could Donna's strong opinions push through what she would believe is right? Is the Doctor's intelligents the key to solving global problems? Or is The Master's evil ways actually going to do some good? The new poll is open so make sure you get your vote in. This one should be quite interesting!