Hoo boy, what to vote? Assuming I'm able to bring my six years experience in Air Force Cadet fieldcraft and survival to bear, well, it really depends on what aspect I'd consider and how long the pair of us would be stuck.
If going on the basis of favorites, well, I'd be in Lilly's camp. Granted, her blindness might be a problem,but there are methods that can be used to work around that (such as using cord or rope to mark pathways or boundaries, etc). A sudden change, like a storm or monsoon, might put us both severely on the back foot, however.
Going on the basis of practical knowledge, I'd go with the Nurse as, as others have pointed out, he has extensive medical knowledge (though I'm not sure whether that might extend to improvised medical treatment in the field). He also seems fairly level-headed and might not crack under pressure. Mutou might be a substitute for equivalent scientific knowledge (though I hope that also covers matters like geology and geography
)
Finally, if I'm stuck for the long term, I might cast my vote in Akira's court. She seems both worldly and pretty lively; she doesn't seem to cave to outside influences and incidents. Not sure if she has any practical knowledge that might contribute, but time and training could help.
