I absolutely love Goddess blush! I'm NC15-20 for reference. My favorite way to wear it is with Orange Twink Pearlizer as a contour, then Goddess on cheeks, then I use Yogamode BP to blend it all together. Really pretty. I prefer the 169 for blush as it does deposit more color, I think. The MA at my MAC counter used the 168 to apply when I was testing it and it was more sheer than when I used the 169, so I think the 168 would make a better contour brush.

HTH!