Notice I did not say femcee or female MC. The need to specify that someone is adept at rhyming in spite of their gender, as the term femcee implies, is backwards and misogynistic, even when well-intentioned. Hip-hop has always been tenuous ground for women, and sadly that hasn't changed much since its inception -- but that hasn't stopped some rappers with skirts to develop as fierce MCs.
Digga has been doing it very well since the late 90s. She's gained the respect of veterans like Bustah Rhymes, who included her in his Flipmode Squad at one point in time. These days, the rhymestress is still sharp with the pen, and to prove it she recently linked with Quelle for "Janis Joplin," a hard-rock inspired banger. Don't sleep on the woman who rocks mics as hard as anyone!