I'd go with a machete. I'm not sure which option to vote for because they're halfway between a sword and an ax, and if you've ever used one you'll know what I mean. Nasty fucking things they are. A well honed machete will chop through a tree branch just as readily as an arm, and so I'm not sure where to qualify them. They can slash and drive like a sword yes, but they're also very adept at chopping down branches like an ax. I guess to the point if I had to carry a melee weapon I'd want it to be useful for more than one thing, so I would go with a machete before anything else. In this day and age, a blade is nothing more than a tool that can double as a weapon, just like a spade. Hell, according to the old adage even a handgun isn't a weapon, it's "something you can use to fight back to your rifle". And guess what, my rifle has a bayonet. And when your rifle has a bayonet and a sold butt-stock on it, you've got melee and distance covered.