I've shot both. Overall i was not a fan of the Kahr, but I wanted to be...
The G42 was OK. Just a small glock. I did have a few FTF's. But it was on reloaded ammo.
Honestly, I would say a Sig P238 (I have one) or a P938.
Problem is you have two different calibers above. So its not apples to apples.