Sakaki: The brooding leader of the group. All defer to her thanks to her gifts in athleticism, ass-kicking, being taciturn and experience with animal bites. Although she does have nightmares about not being able to save Kaorin: High chance of survival.
Yomi: The tough, pessimistic middle-woman, capable of survival but often put in harrowing, near zombie-rush situations. Such as almost getting Nom-Nommed at least once while saving Tomo's skin. Showing off her gruff, resourceful side: High to moderate chance of survival.
Kagura: Sakaki's Right-hand Woman. Runs errands around Magical Land with her, their chosen strong-hold. Head-strong to a fault, she could go the way of forcing Sakaki to put her down after being bitten. However, with her caring, lovable puppy-dog side, I'd give her at least a moderate chance of survival.
Osaka: Plot-armor ahoy! Osaka is kind of useless on her own, due to her unfamiliarity with violence. However, she saves the groups Brain's more than once when she augments strategies to greater effect and notices things that no one else would: High chance of survival.
Plot-wise, I'd put Chiyo-chan and Tomo in the deep end of the pool . . .