Why can't you spell Krystal, Tbone?!?
Krystal is definitely my most wanted of those in the poll. Tharja is interesting, but with Robin bringing the magic, including dark magic, Tharja just seems obsolete now. Maybe have her as an assist trophy with powerful dark magic that not even Robin has, or something like that. Impa...what would she do? Be an older Sheik? Or do you mean Hyrule Warriors Impa, in which case sorry, that's just not canon enough. Daisy just needs to be an alt costume for Peach, but complete with her own look rather than just a palette swap. As much as we need villains, especially female villains, Medusa would just be yet another Kid Icarus character, and I think the series has enough representation for now. Maybe next Smash, if we get a Kid Icarus U in between. Lip is...Lip, no one really cares. Maybe make her an assist trophy for now, so that we can get a better idea of who she is and maybe care enough by next Smash...which of the ones in your poll just leaves Dixie, which would be amazing. Not as amazing as Krystal, but at least she has a small chance of making it. Aside from those...let's see...Wonder Pink? I kid, I kid. But I really wanted to see Dark Samus as playable, not just an assist trophy.
What I'd really like to see the most is Midna & Wolf Link, with Midna riding Wolf Link, with Wolf Link providing most of the melee, Midna providing the specials with her magic, and using her hair for grabs and as a tether. Fused Shadows for Final Smash obviously. Tetra would make an interesting character too, with pirate themed moves instead of ninja ones, but with Zelda and Sheik separate now, and Toon Zelda being even more redundant than Toon Link, I think Tetra is unlikely.
Ranking the ones we have so far:
1. Samus
2. Zelda
3. Rosalina
4. Peach
5. Palutena
6. Lucina (would be higher if she had her own move set)
7. Zero Suit Samus (just Samus without the Power Suit)
8. Sheik (just Zelda in disguise)
9. Robin (not really a female character, just a character with a female version)
10. Villager (not really a character at all, per se, just a female template for a female version of an avatar)
11. Wii Fit Trainer (would be higher if they didn't make the male version, was there a male version in the games?)
12. Miis (not a character period, certainly an exciting addition, but it's literally the option to create your own avatar, not a female character in itself)