What difference does it make? Are you a professional cellphone photographer?
Only parts of the phone that fingerprints irritate me is on the camera lens cover and sometimes the screen. The Moto X's screen is pretty slick and smudge resistant. But I do find myself occasionally touching the rear lens cover when pulling the phone out of my pocket.
Wash your hands more often and your phone will stay cleaner and as a side benefit you won't get sick as often.
As far as a materials, I'm not impressed with the scratch resistance of the "soft matte" colors. The back of my navy AT&T model picked up some little nicks in short order. I just got a woven black T-Mobile version and I'm hoping it will be more durable. It has a similar soft feel, though, so I'm not so sure. Maybe the smooth finish colors are better.
Or perhaps this phone just wasn't meant to be set down on anything hard without a cover installed...