I am loving my Tokina 16-28mm f2.8I mostly do landscape so a nice wide angle, any suggestions?
If you can push the boat out a little more cash wise the Nikon 24-120 f4 is a cracking lens and the extra length comes in really handy.
I personally don't like standard zooms. Consumer 4.5-5.6 or even f/4 zooms are slow and professional f/2.8 are bulky (and still slow compared to primes). I much prefer a combination of an ultrawide zoom/prime and a fast wide to standard prime lens.
Primes are usually light, balances better on smaller bodies like D600 and have superior IQ. Especially contrast (less elements) and smaller distortion which is good for landscape.
You have 24 megapixels on your D600 and thats a huge advantage. You could use a good 35mm lens you can easily crop 35-60mm reach without loosing anything. Then with additional light 85mm (or even cheap 50mm in crop mode) you could shoot great portraits. And you still have f/1.4 or 1.8 aperture. This is much better and more verstatile than slow 24-85 zoom with f/5.6 in most of the range

yeah reviews are not good :-(
tokina is out the question as I use filters :-(
the 16-35 looks and sounds awesome
also the 24-70
this is my first full frame camera so is my best optiojn the kit lens to get me started and maybe wait for a better lens?