I'm not so sure about the premise. Men, who as a broad generalization start out strong and top-heavy, have the option of developing their strengths while they are young, but this is a short-cut to nowhere. As we age, if this strength, speed, and even flexibility are the basis of our ability, the young guys will soon overtake us. The natural strengths of women -- low center of gravity, strong legs and core, superior grace and rhythm -- on the other hand, are a more sound and long-lasting basis out of which to build a martial artist.
On another point, though, in this day and age it is true that there are more senior male martial artists than females, and therefore fewer role models for aspiring female martial artists to look up to. In Sue's post she mentions the legendary founder of Wing Chun, Shaolin nun Ng Mui. But what about living female role models?
The amazing Keiko Fukuda springs to mind. Her grandfather was the first significant Jiu-jitsu teacher of Judo founder Jigoro Kano. In turn Kano taught Judo to Fukuda in the Kodokan's women's division. As a 5th dan, at the 1964 Olympics she demonstrated the advanced Judo two-person kata Ju No Kata, which she also wrote the book on.
At time of writing she still teaches judo 3 times a week at age 96, is the highest ranked female-judoka ever (9th dan). Fukuda's life is the subject of the film, Mrs Judo: Be strong, be gentle, be beautiful.
Here's the blurb:
Her destiny was set two generations before her birth, during the final days of the samurai era. In 1934, at 21 years of age, Keiko Fukuda embarked on a long journey with judo as her vehicle. This path meant giving up marriage, family, and her Japanese citizenship. She has endured war, discrimination, and crossed oceans, to become the highest ranking woman in judo history. She is the last living link to judo’s original history. Today at 96, she still teaches judo three times a week, and through her gentle soul she exudes wisdom and inspiration to all who come in contact with her. “Be Strong, Be Gentle, Be Beautiful,” is an hour‐long documentary film about K it eiko Fukuda’s inspirational journey.
[Edited May 2016: Keiko Fukuda was promoted to 10th dan in 2012 and continued to teach Judo until shortly before her death in 2013, aged 99.]