We have the 18" x 18" travertine tiles in our foyer and guest bath. It's excellent for not showing dirt, marks, etc. The more "worn" it gets the better it looks.
But we have Pergo floor in our kitchen, the B & W you see in my 'tar. It is the absolute best floor I have ever had. Virtually indestructable. I feel that it is WAY better than ceramic or wood, because of the dogs. No grout, don't have to worry about standing puddles on wood. The dogs just run in and skid across! I would never have thought Pergo was the way to go, but I'm very happy. (Just be careful of the wood getting scratched because of the sand.)