FF #47: THE WASP

 A very minor milestone: though Marvel's costumed heroines of the sixties were sometimes a rather demure lot, at most able to engage in a little judo, the Wasp broke the "punch barrier" in 1968 when she clocked Princess Python,

FF #46: THE VIXEN

 Despite Vixen kicking around for years, she doesn't have that many good fights. Here's one from SUICIDE SQUAD #23.

FF #45: ULTRA GIRL (1986)

 Not much to remember about this eighties character, except that she does seem to be the first comics character to sport the "Ultra Girl" cognomen.

FF #44: THUNDRA AND TITANIA (1979 version)

 It's far from the best fight for Thundra, but might be the best for Marvel's first character with the "Titania" moniker (later changed).

FF #43: STARFIRE (1971)

 Three Starfires preceded the celebrated TEEN TITANS character. One was a male Russian one-shot hero who appeared in a 1968 TITANS comic, but the second was a new villainess for Supergirl when Mike Sekowsky took over the character. This Starfire was a lot like the "Doctor Cyber" character in the contemporaneous "Wonder Woman" comic, also by Sekowsky: a stylish lady fiend with an all-female army. To my knowledge this Starfire hasn't been revived, even under a new name, but I think she might be the first female character who beats up Supergirl when the heroine loses her powers. However, the Maid of Might recovers and trounces the nasty girl.

FF #42: RED SONJA

 You always remember your first punch from Red Sonja.

FF #41: PRINCESS PROJECTRA AND SATURN GIRL

 So these two Legion of Super-Heroes babes get stood up by their dates, and decide to get even by having a sapphic hookup in a futuristic Tunnel of Love. But they're both dominants, so they get into a fistfight about who has to act the submissive.

Not really, but it's more entertaining than the real story.