I thought the point of having a survival kit is one never knows what the local conditions will be until they get there. My line of thinking is use what has been tested and proven. With that in mind I would think the best kit is one that is built with the above mentioned kits and select the item with the least space and weight when there's a redundancy except when it comes to fire and water purification.

My interest in gadgets got me interested in survival. I would say gadgets are important.

Jeanette Isabelle
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I'm not sure whose twisted idea it was to put hundreds of adolescents in underfunded schools run by people whose dreams were crushed years ago, but I admire the sadism. -- Wednesday Adams, Wednesday