I will say this, I ordered Silver. However, Black is the toughest looking Pat all around. Now, I have a limited so the matched color bumper was the selling point for me. You are getting a sport so you don't have to worry about that. Second if you live in an area with a lot of pollen, you are gonna hate a black car. I lived in Tokyo for two years, and the Japanese would keep little dust mop's in their trunks for their black cars, because of all the pollen. So I assume that it's all down to your environment. Now I will also say this, if I ended up getting stationed somewhere cold when I leave here, I still would contemplate changing from silver to black.
To cut it all short
1) Silver is your more practical color that still looks sharp.
2) Black looks the sharpest, however, it can really be a pain.