Black. That's to much cf for the flares.
+1 I actually did one flare and one door rocker and didn't even have it on long enough for a picture. It's not so bad until the sun hits it, then it stands out more than chrome. Looks a lot like denim or herringbone on large flat surfaces in the sun.
I guess it depends on what you're going for though, opinions are still subjective last time I checked.
Note that there are several manufacturers making it, and all have very different characteristics. I got one of each, and of all I liked the 3m (most expensive) the best, very realistic. I used a very large piece of the cheapest (tekwrap) with a heavy weave pattern to cover some bodywork on my tailgate, and I DO like it better there. Any other place I put it was too much regardless of MFG, and I went to matte black vinyl or plastidip.
My 2c for what it's worth.