Basement Day 6 - Picking a Floor Color

I can't believe it's only Monday. It's been a long and stressful day at work, and probably just as much so home front. Why? Our contractor handed us some homework today -- pick a flooring color! One would think having more options is a good thing, but not for me at this stage when my mind is being pulled in numerous directions at all times.
We have 12 color options, all of them are 13mm laminate wood floor which is a practical and economical choice for a basement. In the background is our ground floor staircase stained in Red Oak Pewter.

Color codes are from the first row left to right: Country, Oak Walnut, Grey Oak, Royal Teak, American Cherry, Royal Merbau, Wild Maple, Brazilian Oak, Golden Oak, Red Maple, Cherry, and Ebony.

My first instinct was Grey Oak (top right corner), then felt the color scheme might be too flat/cold since I would likely paint the walls in blue-ish grey tone. What do you think?

The second option is the one right next to the Grey Oak, called Oak Walnut. The color is much warmer but under iridescent light it appears very brown. So which one would you choose for a basement?

Our contractor pretty much finished hanging the drywalls today, so I could only guess the next step will be patching and sanding. They disconnected most lighting fixtures down there so pardon the poor picture quality.