Wonder Woman (D.C.): Although not always drawn very muscular, this Amazon is the epitome of female strength and power.
She-Hulk (Marvel): Jennifer Walters is cousin to the Hulk and gained his super strength through a blood transfusion. She's green, not quite as mean, and has a law degree to match.
Ann O'Brien (Monkeyman and O'Brien/Dark Horse): While working on experiments in interdimensional travel, an accident bathed Ann in a mysterious radiation which caused her grow to seven feet tall and endowed her with superhuman strength, endurance and speed.
Titania (Marvel): One of She-Hulk's arch enemies with the strength & physique to match.
Big Barda (D.C.): She's a New God and warrior from Apokolips
Thundra (Marvel): A powerful Femizon from a technologically advanced future timeline where men have been subjugated by women.
Stunner (Marvel): Dr. Octopus uses virtual reality to turn Angelina Brancale powerful & beautiful.