I’ll start with mine first…
Lady Shiva – What’s not to like? She came up with Bronze Tiger and Richard Dragon (2 of my all time favourite Martial Arts characters) is the mother of the 2nd Batgirl/Cassandra Cain, has 2 good longstanding rivalries going on with 2 other female characters (Black Canary and Katana) and can make the “Almighty Batgod” her biatch whenever she feels like it.
Yours?