My main lens has been the 14-24mm Nikon for years, but I think I am about to switch over to the new Tamron 15-30mm F2.8. You may want to put that lens on your list as well. I'll be shooting 4 jobs with it in the coming days as my Nikon lens is in for repair after sustaining impact damage. All the reviews of this lens so far are very good.
Indeed, Dxomark.com rates the Tamron 15-30 one point higher than the Nikon 14-24! And the Tamron is nearly $800 less than the Nikon.
I've added the Tamron 15-30 to the lenses page.
Has anyone else tried the Tamron 15-30mm yet?