I always shoot in both raw and jpeg although my posted images are usually edited versions of the raw file. That said, I'm constantly amazed by the quality of the jpegs produced by the Fuji X series of cameras and often I can't better them no matter what I do to the raw image. This is a good example taken on my afternoon walk in Paimpont Forest - I just liked the feel of this.
@jocasta This is my standard film simulation: B&W with a red filter; shadows pushed 2 stops; highlights reduced 1 stop and the sharpening reduced... that plus Fuji's magic produces this!