I always believe in women leadership. I saw how my mother steered or family during time of crisis, look at Germany despite all the problems happening in the EU zone they held steadfast.

Men who believe woman cannot challenge their dominant testosterone should go back to their mothers and challenge the same. They wouldn't be able to read anything here in wazua coz they would be busy looking after their fathers cattle with illiteracy.i would love Warren to be first female vp for that usa country .Women always get things done. Look at local chamas here in kenya . Most chamas run by men are marred by unruly and disorganized members.

You forgot Marine Le Pen who has a very strong chance of being the next president of France.

Aside from Angela Merkel these three are weak leaders with terrible records on policy.

I dont really think gender issue impacts greatly on governance.It boils down to the individual leadership traits and above all, structures which no matter the person in charge,the interests of majority is safeguarded.The countries you are mentioning,UK,USA and Germany are deeply structured in a tradition of stability and prosperity such that it doesnt necessarily depends so much on who is the head.The heads mainly play a largely ceremonial and PR aspects while the laid down structures play major and crucial roles.So whether its a man or woman in the said countries,its inconsequental really.
Your observation may hold some water if it comes to Africa.As you know very well its a man eats woman society.

Yeah very true and that will be Rosemary Odinga.

We also have the current Brazil president: Dilma Rousseff which from Wikipedia: Brazil has the world's ninth largest economy by nominal GDP, and the seventh largest by purchasing power parity.