I have a P30SK with a LEM trigger. All three of my HK pistols (currently 2) have been totally reliable and never malfunctioned once. For that reason alone the P30SK gets carried regularly in cool weather. I also have a full size VP9. It is reliable enough and easy enough to shoot that I have it as my bedside gun.
Based on the good experience I've had with HKs being accurate and reliable guns, of the list you posted I'd go VP9SK, no question. But to be honest, I'm just not a fan of the other guns listed and as a result, I do not have experience with them.