R.B.
we have real dark wood floors in our living room and yes you can see everything on them. I don't think its any harder to clean them than any other floor in our house, but yes you can see when I miss a spot.
My dad has real wood floors in his house that are a medium color ( its not real light or dark) and they are so pretty, you can't tell when they are normal dirty and he doesn't have to sweep daily and they still look nice.
Im not sure if there will be a big difference between the real wood and the laminate, but there is the difference between the color of wood and how much dirt shows up.