It is just a personal preference but I would go with the lightest, natural finish I could get. I just get the 'dugeon' feeling in a room where everything is stained dark.
But then, it is a matter of personal preference; some would like it all dark as possible. I have seen a lot of beautiful cherry pieces stained to almost black when the natural finish would have been much prettier. If they were going to use black stain, they could have used poplar for a lot less money.