1. Para 2 - K390 is my preferred steel in this but the overall design is outstanding for an EDC blade. Add a deep carry clip and it really can make it carry better in khakis. My only complaint - I wish it had a 4 inch blade.
2. Pacific Salt 2 - This knife is pure utility. I bought it to try the LC200N and I really like the blade shape (I wish the Endura had this profile). It's perfect for a traveling/vacation knife that can sub in for kitchen prep.
3. Endela - Just got this one in K390 and I believe I prefer this model to the Delica and Endura. I like that it's a little wider than the Endura. Plan to try a Stretch soon as well though. This spot could easily go to other knives too. Spyderco make a lot of knives.