Wow, the boys are sure winning this one.
Some ladies I love:
From Steven Brust's Dragaera
Sethra Lavode (She's the bravest, smartest woman in the world)
Keira the Thief (ditto)
Aliera e'Kieron (crazy and bad-tempered. What's not to like?)
Tazendra Lavode (crazy and good-natured. What's not to like?)
From Steven Erikson's Malazan:
Kilava (Tool's sister -- sexy AND two hundred thousand years old)
Lady Envy (Whee! Psycho super-powerful women ALWAYS amuse me)
Tavore Paran (dedicated and ruthless without being (as so often happens in this genre) beautiful and romantically wistful)
From The Lord of the Rings
Eowyn ("Begone, foul dwimmerlaik! I shall smite you if you touch him." I think that says it all)
Galadriel (no clever quote, just to say she TERRIFIED me the first time I read the books and I kept trying to figure out how a good guy could be so scary. He's clever, that Professor Tolkien)
And just to say Belit rocks my world. "There's a ruined city, my love, that no one's ever returned alive from. Let's go sack it! But first, let me dance naked for you."
From SF (slim pickings here. Hm)
Alia IS very cool. And I always liked the Princess, whatsername, who wrote the book.
Ripley, of course, if we're veering into film.