I am looking for the perfect wideangle lens for a Nikon D7100 (APS-C with 24MP). It is for people and street shooting. Always with apertures between 1.4 and 4.0

I am considering the follwing lenses for this:

Sigma (old) 30/1.4 (DX)
Sigma 35/1.4 Art line (fullframe)
Nikkor 28/1.8G
Nikkor 35/1.8G
Zeiss ZF 35/2.0

There will be soon a new Sigma 30/1.4 for DX available. As an Art line lens. So if you know something about this and its IQ, feel free to comment.

Does anybody has expereince with some of these lenses and can give me a better feeling about IQ differences in these apertures and especially also the bokeh?