I voted 5S but I can't see myself replacing my 5 until an iPhone 6 comes out. The A7 chip is certainly impressive, but I would have preferred to see 128 gigs of memory. As far as the colors on either options my cover pretty much makes that point moot anyway.
I'll also echo, I would never go with the 5C because there is no way I could go back to 32 gigs. My music takes up more memory than that.