For concealed carry, buy the one you think you will be the most comfortable with, carring, handling, shooting, and cleaning. For plinking, if money isn't an object, buy them all! Never seen a Sig I didn't like. For that matter haven't seen many guns that I wasn't ok with unless they were just stupid. Bought a Sig p220 9 at an estate auction and was upset when I realized it was a discontinued model, but it is now one of my, not for sale, favorite shooters.