That's pretty hard to answer. If it's all vs all then anyone could fight one or two of the others, and then get attacked/shot from behind, but I'll go with Josh, since I think he's the most powerful.

^ I agree, and I can't even decide who I think would win, it's too unpredictable really.

Tamora would probably run away and survive like she did every time something happened on the show xD

And Aaron