I am a little surprised that the 14 2.8 hasn't entered in the discussion at all ;-)
I personally use the 14, as size and weight is my primary concern for travel. If you want small and light, it's a spectacular lens.
If you want to shoot portraits at night, then you want the 16. For landscapes and nightscapes I generally want larger DOF, so I don't use f/1.4 pretty much ever, I just use a tripod. I wouldn't choose the least wide lens unless I really wanted the bokeh. But then again even when I had a 24 1.4 Nikon, it's too wide for an attractive portrait so really I used the 35 1.4 (which would be the Fuji 23)
If you don't mind the size and weight than the 10-24 will give you the convenience of the zoom and the benefit of 10mm. Although don't expect a zoom lens to perform as well as a prime in edge to edge sharpness and vignetting at the extreme ends of the zoom. I looked at getting the 10-24, but decided I probably wouldn't be happy with certain optical compromises.
I get around the lack of wide angle of the 14mm by doing panoramic composites.
That being said, I'm now interested in the Rokinon 12mm