I am looking to replace my truly loved Endura SS. My sweet spot is 3-4 inches of blade. Something heavier duty that will last a lifetime. I'm at a toss up between the Gayle Bradly, BM 710, Para2, emerson p-sark, Zt 0400, zt0200, or anything else ridiculously sharp that locks into your hand and withstands any or all abuse (not that it will be abused but I'm looking for a knife that will hold up for 15-20 years). If anyone has any knives that were constant companions and have served faithfully I would love to hear your opinions. Im looking to spend $100-300 max.