Greek mythology not only gave us the centaurs, but also the fierce warrior women -- the Amazons. So was there any doubt that the most well known of the Amazons -- Princess Diana, aka Wonder Woman -- would eventually be one?
Wonder Woman
Supergirl and Batgirl
Supergirl and Lois Lane
Batgirl and Hawkgirl
April O'Neil and Elisa Maza
Ranma Saotome