I continue to be impressed with the built in HDR mode on the Canon 6D . Keep in mind that this is standing, hand held. Not bad! Canon 16-35mm 2.8 L II , 1/200, f8, ISO 400 – Very Light Editing with Camera RAW.

I find myself using it more and more. Its just quicker, both to shoot and process. I think with a grad filter (which I usually do use) for the horizon and HDR mode on the camera, and it should be very, very easy to even better results.