A living room floor at extra large format has a way of framing the whole space rather than simply covering it, laying down one broad, continuous surface underfoot with almost nothing to interrupt it. Stone effect, wood effect, and plain porcelain at this scale are consistently the most popular choices for exactly that reason.
The look suits both a sleek, contemporary living room and a more classic one, since the format itself reads as considered rather than tied to any particular style. Around a fireplace or hearth, a smaller decorative or mosaic tile often works better than the main floor tile, bringing pattern and warmth to a focal point of the room. The same smaller formats can also dress a feature wall behind a sofa or television. With so few grout lines to maintain, the main floor stays easy to live with day to day, whatever else is happening around it.