Never responded to one of these before but I've always enjoyed voting when I've seen them.
1. Britney Spears - She looks pretty tough nowadays and I feel like she'd still have that crazy edge to her that could help her in fights
2. Rose Leslie - Looks like she'd be incredibly tough, even though she's a bit smaller (shape wise) then some of the other girls. I think she'd be a great brawler
3. Christian Serratos - She seems like someone who could hold her own. I don't think she'd be the toughest out there but I think she'd beat most fighters.
4. Miley Cyrus - Has that crazy edge, probably even a bit more than Britney. But I feel like Miley would have less experience and once that energy of hers runs out I feel like she'd tap or give up.
5. Natalie Portman - The smallest fighter but I feel like she'd be able to use her brain to her advantage. She's pretty thin, but I think in the right situation she could flourish in a fight.
6. Anne Hathaway - The tallest here, but I feel like she'd be a bit soft compared to everyone else. I don't think she'd make a bad fighter but she just can't stand up to the rest.
I don't think any of these 6 are particularly weak honestly, but I'm curious to see what others think!