Choosing can be difficult. Today I had that problem. It’s a sunny day and I experimented with my camera-settings. So shadows +2 and highlights -1. Spotmetering and ISO100. The look should be quite contrasty. In general, however, I think colors need more black and b&w needs more contrast. Especially whites. Look for yourself and
And now (below) I pushed the contrast a lille bit with the curve tool in Lightroom and add some grain (25%).