She-Hulk (Fantastic Four)
Much like Spider-Woman, She-Hulk was the female counterpart to a more popular male character. Unlike Spider-Woman, She-Hulk has been used fairly regularly since her creation, growing as a character and becoming a member of both the Fantastic Four and the Avengers.
Here She-Hulk wears her Fantastic Four outfit, perfect for fighting Dr. Doom or visiting the Negative Zone.