In the hands of a skillful operator, a sword is a fearsome weapon indeed. Even in the hands of an idiot, you wouldn't want to get too close ... just in case he/she got lucky.
And it's a fact that any Sword used during a survival event would automatically become a Survival Sword. Even that wall hanger replica that will probably break the first time you hit something with it. There are, however, swords that have been designed specifically for combat/survival. Here are some of the best.