You will live to regret a stainless backsplash they get dirty fast and are a pain to keep looking nice. Go with the same backsplash you are using everywhere else a much nicer look IMO.

We are really having a tough time with the choice behind the stove. What do you guys think about a solid piece of quartz with marble subway tile everywhere else. Or the same subway tile in a herringbone pattern with a border or the medallion we found (that is attached)