Nikon or Zeiss prime lens for D700

IMO, there is nothing that compares to the Zeiss 35/1.4. I'm not sure why it doesn't get more attention. Maybe it's due to it's size.

I've owned and used all the very best 35mm 1.4 lenses on Leica, Canon and Nikon and the Zeiss Distagon is the very best. It's rendering is the absolute smoothest I've come across, giving the feeling of a telephoto when shot close to subjects.

This is a good example by Steve Huff.

It's sharpness across the frame is only a little short of the Summilux 35/1.4 FLE but it's rendering and transition from sharp to unsharp is unmatched.