Here it is with the darker wood flooring.

If you dont mind seeing every tiny scratch, speck of dirt, lint or dust, if you dont mind incessant vaccuuming, sweeping or mopping then go with the dark. Otherwise, go with the lighter flooring.

Go lighter. I'm someone who LOVES light floors (I'm more Scandi Modern). The two light one's you are showing are going to be RUSTIC. See the knots and the heavy mineral streaks (aka grain) in the samples? Imagine that EVER PLANK! Both of these are in the 'light' category but they are also in the contemporary-rustic as well. As in 'old farm house'.

Your rolled arm leather sofas in Cognac scream out 'old English country house'...not farm house. I like the idea of the lighter...I'm just not sold on the presentation....be aware. If you see it on the sample plank, you MUST expect it to be there in the floor. If you SEE IT in the web photos then you MUST expect it to be there.

First photo, #3! Darker to blend with your furniture, but not so dark you'll curse every speck of dust. :)