This poll is probably a prediction, some backstory:
My sister (Casey) and ex (Sophie) (fake names) quietly hated each other when I was with Sophie, not for any particular reason though. I think Casey was jealous because Sophie was taking the attention, but nothing happened except the odd snide remark or dirty look.
Since we broke up though Sophie has been talking about Casey behind her back and now Casey wants to fight her. I'm pretty sure Sophie would accept the challenge as she has hinted to me before about this saying she needed a slap. I'm quite close with Casey and hope she can win if they do actually fight, she definitely believes she can.
Finally they're quite evenly matched, similar weight, Casey is 5'4 and Sophie, I think is slightly taller, but no more than an inch.