User blog comment:SPARTAN 119/Nobody Survives Forever: A Survival Battle Royale/@comment-32516697-20190323091526/@comment-35680048-20190323135905

Unless you take option B and replace the warriors you listed with more competent and powerful warriors. I say this especially for Yuki(since I don't know the rest of them) because since this is main story Yuki, he's pretty screwed. Sure he has the diary but as a person, Yuki is way too reliant on Yuno to survive, as shown throughout the series and even in the bio saying "Largely thanks to Yuno's help Yuki was able to defeat many of the other Diary Holders until Yuno and himself were left."

The others you mentioned in option B, aren't well suited to this either including inexperienced sociopaths and kids with guns (I'm looking at Saeko here) Also, you're gonna want to make the win/loss conditions of this battle very clear for everybody so that we can vote properly.