Frankly, given the two choices for that specific application, I'd have to go with the machete myself. I've spent time in S. America and in different survival schools and the machete does wonderfully for the weight. Especially the new ESEE Lite Machete-even lighter.

The Smith. is like 2lbs. Which can add up over time.

But, when you find yourself on a sandbar in a duel that goes horribly wrong, you'll probably want the Smith Or when the zombies start attacking the homestead...Or if you ever decide to strike out on your own as a 21st Century Grizzly Adams....