When I see them in the flat industrial/agricultural plains of North-Eastern France, or the deserts of southern Spain or Canaries- I think they look great.
120 of them are planned for the wonderful part of the Jura mountain where I live, with amazing limestone circles and mountains, fabulous wildlife, including kite, buzzards, peregrines, capercaillies, many kind of bats, etc- and I think it is totally unsuitable. Not because it is MY backyard, but because it is so allien to the landscape. The worst is not the masts, but the huge concrete platforms and the pylons to take the electricity produced to where its needed.
Our winds here are either non-existent, or too strong and too gusty - making wind-farm totally unsuitable anyway.