Is sigma 35mm F1.4 much better, than NIkkor 35mm F1.4?

I would like to buy one

Both lens have a weak price/quality ratio.

The Nikon 35mm f/1, 4G Cons:

-huge vignetting on full frame.

-It produce high chromatic aberration.

-Significant coma.

-Noticeable astigmatism.

The Sigma 35mm f/1, 4 Cons:

-Huge vignetting on the Aps-c sensor.

If you are using a DX sensor you're better off buying the 35mm f/1, 8G, price/quality ratio is way better, however if you need the f/1, 4 aperture, the Sigma will be sharper than the Nikon at f/1, 4.