Mmmm, it's hard to say but as a rule I think going with a path that has all four corner pieces, top, bottom left and right pieces and a center piece (so 9 tiles in total) makes the path look very refined and realistic. Going for ones that are just one square that repeats over and over look cheap to me sometimes.
I think going with a path that has all four corner pieces, top, bottom left and right pieces and a center piece (so 9 tiles in total) makes the path look very refined and realistic.