amfoto1 Loc: San Jose, Calif. USA

The problem with asking a question like this on a forum like this is that it's very unlikely anyone will have used all three current iterations of these lenses. And even if they have, it's unlikely they have used more than one copy of each. But lenses can have variation from copy to copy. Finally, even if someone has a lot of experience with them all, you have no idea their criteria, how demanding they may or may not be, or their level of expertise.

You would do better searching out reviews of each lens. For example, for the Sigma 35mm "Art":
https://dustinabbott.net/2016/01/sigma-35mm-f1-4-dg-hsm-art-review/
https://www.the-digital-picture.com/Reviews/Sigma-35mm-f-1.4-EX-DG-HSM-Lens-Review.aspx
https://www.kenrockwell.com/sigma/35mm-f14.htm
https://www.dpreview.com/reviews/sigma-35mm-f1-4-dg-hsm
https://www.imaging-resource.com/lenses/sigma/35mm-f1.4-dg-hsm-a/review/
https://www.pcmag.com/reviews/sigma-35mm-f14-dg-hsm-art

I particularly like The-Digital-Picture, linked above, for Bryan's gear reviews. He hass compared a lot of popular lenses over the years, goes in to great detail and does a lot of testing that can be directly compared with other lenses. DPReview and Dustin Abbott also do good reviews, although Abbott tends to focus on mirrorless cameras and lenses. I also like Lensrentals when they review a lens in detail. Unfortunately they don't go in-depth with many lenses and Roger appears to only have a short blurb about the Sigma lens: https://www.lensrentals.com/rent/sigma-35mm-f1.4-dg-hsm-art-for-nikon. I'm less of a fan of Ken Rockwell and his gigantic photo illustrations (bigger must be better?), but he also tries out and compares a lot of gear.

EDIT: Out of curiosity, I searched the Lensrental blog and found Roger has in fact done some longer reviews of the Sigma 35mm f/1.4...
1. When the lens was introduced (it was their 1st "Art" lens in 2012): https://www.lensrentals.com/blog/2012/11/sigma-35mm-f1-4-arrives-announces-new-world-order/
2. Optical comparison with the two Canon 35mm f/1.4L lenses and the Zeiss: https://www.lensrentals.com/blog/2015/09/35mm-f1-4-shootout-canon-35mm-f1-4l-ii-vs-sigma-35mm-art-vs-canon-35mm-f1-4l-i/
3. Teardown of the lens... a peek inside at how it's built: https://www.lensrentals.com/blog/2015/12/sigma-35mm-f1-4-dg-hsm-art-lens-teardown/

You can probably do similar searches and find thorough reviews of all the lenses on your list. You might also want to add the Tamron 35mm f/1.8 and Nikon 35mm f/1.8. The Tamron has image stabilization, which all the others lack. The Nikon might be worth consideration, too... it's only 2/3 stop "slower", a whole lot less expensive, a little smaller and lighter, and sometimes a slower lens' image quality is close to or even superior to a more extreme lens'.

dino21 Loc: McAllen, TX

Thanks!

nealbralley Loc: Kansas

cjc2 Loc: Hellertown PA

I have owned both the Nikon 50/1.4 and the Sigma 50/1.4 ART. IMHO the Sigma ART was far better, but also much more expensive and much heavier. YMMV!

camerapapi Loc: Miami, Fl.

In the first place, if I were using a Nikon D780 my choice would be the Nikon 35mm f1.4. I have always favored the lenses made by the manufacturer for their cameras. I bet Sigma and Tamron are making excellent optics too but Nikon makes lenses for the exclusive use with their cameras.
The only lens made by Nikon that I considered repairing was the 18-70 f3.5-4.5 AF-S when its AF failed. I have been using the lens in manual focus and it is still one of my favorites.

I still use lenses from the 60', 70' and 80' primes and zooms without issues with my dSLR cameras. I wanted to mention that sharpness depends a lot on the photographer. Your super sharp lens means nothing if good photographic techniques are not used. VR has made lenses sharper because they stabilize the lens in use but still good techniques assure the photographer of sharper images. Tripods make lenses better when properly used. You have to know that modern lenses are sharp enough, regardless of manufacturer.

I cannot remember a lens that did not perform well when I did my job.

Opusx300

Whilst I am a Canon shooter I have used the Tamron 35mm 1.4 and found it to be an excellent lens. Even used it against the very highly rated Canon 35mm 1.4 L II and found it quite competitive. Also very well built and solid in the hand.

I have recently seen the Tamron for sale at B&H and Adorama for $699. This is a great price for a superb lens. I would grab one.

Bridges Loc: Memphis, Charleston SC, now Nazareth PA

I am a Nikon user and like their lenses but when it comes to the 1.4, a lot of reports claim their 1.8 is the sharper lens. I have seen reports that praise the Tamron 1.4 and if the Sigma is part of their Art series, I'm sure it is also very good. I have had the Nikon 1.4 for a while and picked up a 1.8 because of what I said earlier. I cannot tell the difference in sharpness but the extra 2/3 f-stop allows for better depth of field control with the 1.4. With the way, ISO is usable all the way up to 6400, the difference between 1.4 and 1.8 isn't that important.

Bill_de Loc: US

The best way to reduce the type of replies you don't like is to ignore them. Responding may make you feel better, but you need to ask yourself what you achieved.

The three lenses you are considering are all good lenses. I have not used all three. I like the focus speed of the Nilon. From reading reviews, putting aside focus speed, the Sigma Art lens is the way to go.

dino21 Loc: McAllen, TX

Thx alot!

keywest305 Loc: Baltimore Md.

I have the Tamron 35 1.4 and it is superb. I have had the Nikon also and stuck with the Tamron. I now moved on to the Z9 and also tried it with the FTZ adapter and still fabulous. The reviews rated it as one if the top picks.

dino21 Loc: McAllen, TX

Bu t I do not want to reduce the number of replys! Thus the question here.....Thanks for your input.

dino21 Loc: McAllen, TX

Bu t I do not want to reduce the number of replys! Thus the question here.....Thanks for your input.

stanikon Loc: Deep in the Heart of Texas

I do not have the F1.4 35mm, but I do have the Nikon/Nikkor F1.4 50mm and the Nikon F1.8 35mm. I use them with my D500 and have no complaints about either one of them. Both take very sharp images over the entire F-stop range. For my money, OEM is the way to go.

dino21 Loc: McAllen, TX

Thanks