We are getting our hardwood floors refinished and are really confused if we should go with darker stain for the floors because its really 'IN' these days. We are worried it will make the house look smaller. We currently have natural finish. We have looked at thousands of photographs online and tried to imagine the final result but that is confusing us even more. Any advice would help :)

We are not planning to change the wall color (bit greenish gray). Attached pictures show stain options alongside the wall - from right (maple spice, gunstock, natural) OR should we go for one of those blackish brown ones (not shown here)?