Why cover the concrete at all? Stain and polish it.

If not stained concrete, I would look at Marmoleum sheet. I live in the country with critters and gravel driveway to the barns. The Marmoleum seems to be holding up fine. My kitchen vinyl is fine, too, but most of the gravel has fallen out of the treads in my shoes by the time I get there. I wouldn't pass on a wood floor in your circumstances. In fact, I'm contemplating tearing all the carpet out and putting in radiant heat with some kind of wood floor. Living in the winter belt, I only hesitate because of the floor temperatures I might end up with and the cost of heating it. Many, many years ago I had a wood kitchen floor. It was old and had nicks and blemishes that didn't sand out. I loved it. It was one of the easiest floors I ever had. Dog toenail scratches blended right in!