My comparisons are about warrior women and NOT political leaders.
There were plenty of female political leaders after Christians got hold of Europe. IMO, strong women would get ahead no matter how the society tried to oppress them. Russia's several Empresses were like that. Both Queen Virginia and Queen Elizabeth the first of England were like that. China's Emperor Wu Zetian (I decided she was an Emperor and NOT just an Empress like all the male historians wanted to call her) was a daughter of a concubine ill-favored and ill-treated by her elder brothers and step mother. She was too strong tempered so that she lost her first husband, Tang Taizong's favor. Her position of being the concubine of Tang Taizong made her a very bad choice for her second husband, her step son, to marry in a Confucious nation and society where such action was incest and totally unacceptable!!! She was considered a fox fairy or demon who had used magic to seduce Tang Zhongzong to marry her and to make her his equal and to let her rule the kingdom. They almost pursuaded her 2nd husband to put her aside. However, she went through all of those difficulties and destroyed almost all of her enemies, including her own sons and became the Emperor of China. Anyway, I feel there are a lot of such examples in all over the world.
However, from what I know, Europe before 20th century and after being Christianized almost completely after about 9th or 10th century, there was only Joan of Arc who could be considered a true warrior woman. If there were others, I do not know of them.

In East Asia, such warrior women traditions had not stopped since the very ancient time despite of or inspite of the Confucian traditions.
Btw, when I said the Christian tradition, I did NOT exclude the Christian sects (Protestants) AFTER Martin Luther's reforms!!! If someone think they are more gender equal, please think again!!! The white males who called me "sweetie" and thought that I have lessor brain than them were primarily Protestant males (white or Asians or African Americans)!!!

Even my very old and very traditional uncles (my father's old Confucian friends who were born many years older than my father, who was only 3 years younger than the last Qing Emperor and was born in the last years of Qing dynasty) considered me having an equal sized brain like them, who could be considered Masters in various scholarly pursuits and/or had various PhD's or higher degrees from prestigeous Universities all over the world!!!
In my family that upheld the very old Chinese Confucius traditions from about Shang and Zhou dynasties that had NOT been corrupted by either Buddhists' or Daoists' traditions, my father and my elder brother would NEVER dare to dispute women's brain power or capabilities because my mother would let them know the errors of their ways as well as their thinking, especially my mother is a lot smarter than both of them and has proven so in numerous times and ways!!!

I think the older form of Confucianism was actually fairly gender neutral from my own experience, but then, my father's old friends were mostly Wenzhou or Jiang-Zhe or south than Wenzhou scholars and Wenzhou's old Yong-Jia school of Confucianism respect women much better than the more Northern Confucian sects -- Not to mention, Jiang-Zhe (Wu and Yue) areas always had the shadows of the ancient matricentric traditions and would follow women's leadership more. Therefore, it might be the regional traditions of my father's old friends that caused them to treat me, a mere young girl who was 50 - 60 years their junior as equals.