jocau wrote in post #15991171
Wide-angle lenses aren't only used for landscapes you know. When shooting indoors in the evening/at night, wide-angle lenses with IS might come in handy.

Not really because on a wide angle you can shoot fine without IS at 1/30 or possibly even 1/20. The only reason you want IS on a wide angle is video, to help stabilise handheld video. And I assume this is the reason Canon introduced these lenses.
You can use the 14-24mm on Canon by using an adapter, so no big deal. Another option would be Carl Zeiss like you mentioned.
There are issues with that, lack of aperture control. Zeiss is really the best option.
As for the zooms Nikon also has a very good 70-200mm F/2.8 lens (although it's a bit worse than the Canon 70-200mm F/2.8L IS II).
The Canon 24-70mm II also out performs the Nikon 24-70mm, the Tamron 24-70mm sits between them in sharpness, though has the worst bokeh.
Canon might not be executing sensors well, but the lens team are doing a great job, if only they would give some attention to wide angles.
The point remains, with Nikon's dynamic range and wide angles, Nikon is really the obvious choice for landscape shooters.