The difference between Jessica and all those other female Lanterns is that Jess is by far the most marketable. She's actually representing a very underrepresented population in comics, Latinos! That's also probably a big reason why she was added to SuperHero Girls instead of Jade, Soranik or Arisia, well besides being human and an awesome character.
Latinas are apparently irresistible! Lol Same thing happened with Beatriz/Fire, in the cartoons that is.