When I was in my teens, I honestly - amongst many others I seen in films at the time, had a crush on Vasquez in Aliens.
I cannot find a good enough picture of her in the internet as they don't look appealing. But in the film I liked her. She was always the one who ran in first, and ran out last. And just felt like the hero of the movie to me and I just thought that was a bit sexy in a unique way. I always liked aggressive girls (my all time favourite girl even to this day is Sarah from the TV show Chuck!)
Then however in between that, James Cameron made Avatar and had Michelle Rodriguez play the clear Vasquez of that movie and my crush switched as I fancied her already from the Fast and Furious too.