My first pick is
Germany.
Reasoning: They are strong, skilled and technical. I think Nadine Angerer is the best female goalie in the world and if the youngsters at last year's U-20's are any indication, their youth will make a difference. Germany's soccer association has put a lot of money into their programs and you can see the results on the world stage with the men winning the World Cup last year and the U-20 women winning here in Canada in 2014.