Unfortunately, the most influential living woman was never born becasue her mother was pro choice.
If you don't want to start that argument:
Barbara Bush: Wife and confdant of one president and mother of another.
Hillary Clinton: Everybody has an opinion on her. Nobody says she has to be a positive influence.
Condi Rice: One heck of a climb for her. And (to paraphrase Homer) a smile than can launch a thousand cruise missiles.
Sandra Day O'Connor: Only female on the Supreme Court to take a stand for individual property rights.
Ruth Bader Ginsburg: Only female on the Supreme Court to side with the rich over the poor when it comes to individual property rights.
Momma: Because everybody knows two things about momma. 1) The hand that rocks the cradle rules the world. 2) If momma ain't happy, ain't nobody happy.