Each time we do it, with a smaller setup, we're happier.
I'm happy with:
Fuji X100S (has a 23mm F2 pancake on it). Small. 35mm effective FOV. Light weight. Just awesome for having a great sensor that goes everywhere and isn't a big loud camera (built in ND filter if needed and is dead silent with a leaf shutter, built in flash that can sync at any shutter speed with the leaf shutter for excellent fill flash that doesn't look flashed, all in one camera). Love it.
Otherwise, I like the Fuji X-T1 with a 12mm F2 or a 21mm F1.4. I can tackle any light with them and I love the really wide stuff. With the flip out screen, I can do creative stuff. With wifi, my phone can control it so we can do interesting selfies/family photos, or I can hold it way up high and see on my phone for composition. I often take a little Flashpoint Zoom-Mini TTL flash as it literally fits in a pocket, and handles bounce/fill TTL flash as neede and does HSS. It's just incredible for its size.