Of the options listed g42 hands down.
I've got an early one but its run 100%, forget when i got it but it was a month or so after they were released - before the g43 was on the market. I've swam in the ocean with it, pocket carried it (a tad big for this in my opinion) , carried it on the hottest days when my g30 would weigh me down in light clothes, everything you can imagine. And its still big enough to be enjoyable to shoot.
In my opinion a pinky does not need to be resting on the grip , it doesn't add any strength or stability but the internet makes a big deal out of it for some reason. Even when i fire full size handguns my pinky does nothing, i train that way with the reason that not all guns will accomodate a pinky resting spot. To be honest i couldn't care less as long as i have a spot for my middle and ring finger that is enough, i learned to shoot on SAA style revolvers and its nearly impossible to get a pinky on those so to me its all the same.
I will not bash firearms of any kind as bad, there are lorcin, hi-point and usfa zip gun fans out there and thats their reality of whats good. With that said , the worst guns (yeah, more than one) i have ever owned were kahrs. Yeah, i know many many people love them - me, not at all.
The lc380 has a mag disconnect, if the release is pressed by accident on or before drawing it wont fire, a complete deal breaker for me.
The bodygaurd is reasonable but my buddy has one (not sure of age) that has light primer strikes regularly. Im not a fan of the trigger either.
All are decent guns but i think the glock is superior, no im not a fanboy.