I have to correct myself, my absolute favorite has now become “Neutral”, which makes the much livelier and fresher face colors. I still have to tame (reduce) the somewhat too dominant red of the camera with other tools, neutral is clearly the best mode for me.
See also here: Tone Curves Mode
You probably don’t see it so clearly in this example, but if you try it with your own pictures, you’ll probably experience the same thing I did: “Neutral” is the best “Mode” for portraits.
edit: The saturation was too high for my taste. I have just seen that I had Vibrance at +20. I have since corrected that to 0.
Left: Weighted Standard - Right: Neutral