Italy prefers a cute and gentle girl, especially if she's motherly.
Germany prefers a pretty girl, but mostly having a gentle personality.
Japan prefers a traditional and lovable girl.
France prefers a cool and passionate girl and has a talent in singing.
America prefers a cheerful and energetic girl with similar hobbies to his own.
Russia prefers an honest and obedient girl as well as an extraordinary one.
China prefers a strong and sweet girl who would protect his house while he's away.

England's is unknown. Maybe someone who is sweet and would appreciate his cooking.