Has to be Ellen Ripley from Aliens. The character defined the genre.
However a couple of honourable mentions

Noomi Rapace as Lisbeth Salander in the original Girl with the Dragon Tattoo.
Julie Andrews in The Sound Of Music ..
How she kept the Von Trapp family spirits up in the face of all that Nazi aggression simply by singing a few songs was a wonder to behold ...
Marvellous !
Edit : ..oops forgot to leave this ..
I’ve met her, y’know.
I think you actually need to be in the picture for it to be proof
re hovering hands is there some rule you cannot touch them when you pay for a pic - never been to any of the comic con type events - I am sure i would enjoy it if i did so not a dig.
Other than Ripley......

And if you like "hovering hands" check out "Avril Lavigne meets fans"
I think you actually need to be in the picture for it to be proof
I was the one taking the photos. It was kinda the pre-selfie era. I can send you the link to my Flickr album if you want to see the rest of the photos.
re hovering hands is there some rule you cannot touch them when you pay for a pic
Not to my knowledge. Depends on the guest I suppose. And I didn't (directly) pay for the pic, it was included in the ticket I bought.

Of all guests, I think Bouff is probably the last person to be concerned about someone with a hand around her waist! She was charming and lovely.
I can send you the link to my Flickr album if you want to see the rest of the photos.
Only if at least one of you is naked 😉
+1 for Buffy. Willow and Faith were also "badass". However, the answer is Ellen Ripley.
A few other candidates: Jodie Foster's Clarice Starling; Carrie-Anne Moss as Trinity (The Matrix); Jamie Lee Curtis (Helloween).
Only if at least one of you is naked
I am but you probably don't want to see that.
I hope.
Naomi Rapace as Lisbeth Salander from the girl with dragon tattoo.
Lee Geum-ja played by Lee Yeong-ae in Lady Vengeance.
Ripley is not bad-ass, she's reacting to her circumstance. The above take control and dictate circumstance.
As serious rather than just eye candy...
Naomi Rapace is a great call, Ripley was up there, Gal in wonder woman was great for the way it played its gender politics.
Rosalind Russell playing Hildy Johnson in 'His Girl Friday'. Fast-talking, sharp-as-a-tack, runs towards danger.
'Don't worry, yeah, I'm on the job'
Emily Blunt in Edge of Tomorrow and Sicario... Well, Benicio did most of the action in the latter, but she was still good!
The answer will be Durham Red when the Strontium Dog movie gets made
