Women in Mahabharata - Lopamudra
Her story is one-of-a-kind in holding up women's desires in Indian literature. As an acknowledged contributor to the Rig-veda, she holds a special place as being one of the few women who weren't afraid to speak their minds.
Even when her story has been watered down greatly in Mahabharata, we still see glimpses of the early-Vedic headstrong woman in several other legends associated with her.
The only problematic part of her story is Agastya, being her husband, 'making' her from various elements. Now, I would choose to look at this as a case of early marriage, her husband acting more like a teacher than a partner, and the resulting power imbalance.
It is however nice to see her achieve some notoriety despite that, and her husband being supportive in the end.
We see that later she accompanied Agastya when he was sent to the south of the subcontinent to colonize those areas.