Mmm... maybe I got the point of the question.
Mmm... ok what's Aikido:
Aikido is based on circular techniques, actually on locks and throws.
This means that it is not important how strong or big you are, but how well do you perform the technique.
Now, average women are smaller than men (I do not say weaker because I do not want all the women on Aikiweb to ban me as sexist, cause I'm not
)Result: Aikido is perfect for everyone, men and women, children and adults...
And finally, let's stop this silly battle of sexes: I think we women as much as they need us