What would you be using said knife for? A functional EDC, a "just to have" knife, or used as an art/looking piece? For an EDC knife, Delica for sure. It's the right size/weight/thickness for every day cutting tasks and melts away in the pocket. PM2 is a decent EDC, but it's size and price means it stays home a lot of the time for me, but I absolutely love my PM2 and want another, just because it's an awesomely designed knife. Out of the 3 you listed, the Endura is kind of an afterthought knife, at least for me. My Endura hasn't seen any pocket time or use, and doesn't stand out to me like the other two.