A lot of opinions on this topic. Some say whatever blade you have on your person, which may be a Micra or bigger Leatherman, is your defacto best survival knife. I often carry one of my three tiny Chris Reeve Umfaans in my pocket. When I travel long distances in my car I have either a Chris Reeve Aviator or Mountaineer I in addition to a small Sebenza. Other people like to carry sword-like long knives; some like get a kick out of finding good cheap knives, while others gain a feeling of confidence by carrying expensive, exquisitely finished knives.

I found you can't determine what's the best knife for you without owning a few knives to find what you like or need.