I Started carrying daily with the Spyderco Delica. Then went on a quest to find the ultimate EDC blade. After several years and many hundreds of dollars on every brand and even customs from the biggest name makers in the biz I came full circle back to Spyderco Delica and then Endura as the best EDC (for my needs anyway). I will carry the Delica when, smaller is better but EDC an Endura.
Actually most of the time during the quest I would alternate between whatever and a Spyderco Endura or Delica. They simply can't be beat IMO. Spyderco Serrations will cut damn near anything. I also very much like the light weight and low metal signature of the Endura and Delica. I have walked right through many a metal detector and wandings with them.