Just went through similar dilemma. For your upstairs living room go with either wood if you can. Just bought a condo where lower level had wall to wall carpet I cannot live with. There is a family room and two bedrooms down there so we will be there a lot...it opens to the outside and windows so it isn't basement-like at all. Because it is in a very cold climate (Wisconsin) and the floor under the carpet is concrete we were concerned about moisture. It is very dry in this space but concrete subfloor was the issue... Wood seemed a bad choice for this space. I would have done ceramic or porcelain tile in a warmer climate. Coretec Pro Plus is what we went with, looks great. I will have carpets, furniture, etc. Not the vinyl we knew in the 70s for sure. There are many variables to consider when choosing flooring. In this case LPV was a perfect choice, seems to be extremely popular.
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