If I were stranded on an island and I could only choose one anime character to accompany me, it would have to be my dear Edward Elric.
Why, you ask? Because he, at a very young age, already learned how to survive! Even without his exceptional Alchemy skills, he knows how to overcome the challenges of nature!
But wait! There's more!!!...
Just look how cyoot and handsome! >.< not only could he keep me safe and help me survive but I would not complain about cuddling up to this handsome man to keep warm at night!