Okay I have made my decision. I looked at even more samples, went back and reconsidered colors that I'd already decided against and rejected them again, even reconsidered some a third time. In the end I chose a wood-grain image in a brown-gray. It's "Oak Weathered" from Ecotimber.
http://ecotimber.com/productdetails?...itle1=&title2=
It's a very good image of a wood grain, very realistic. It has more depth than the brown Oak Fumed sample and several of the other wood-grain products that I looked at. It's also a bit lighter than the brown Kilmartin Pine that I'd considered. Ironically it's nearly identical to another product sold by US Floors, the company that sells the Kilmartin Pine. The only difference is that the US Floors product is beveled with an odd silver color on the beveled edges. I almost went with that one but worried about those silver edges. Then I looked again at the Ecotimber product and realized it was just the right color with no beveled edges. I worried that the gray tone was too trendy and would seem dated in a few years, but it really looks good with my wall colors and with most of my furniture. It's softer than a true brown. And the weathered look should help hide any scratches or dings that occur.