bmpcc6k wrote:Which one would you prefer and why?
1. DZOFilm Pictor Cine Zoom 20-55mm and DZOFilm Pictor Cine Zoom 50-125mm T2.8 S35 (PL Mount and EF Mount), price 2300$ and 2490$
2. Venus Optics OOOM 25-100 T2.9 Cine Lens (PL Mount), price 5000$
3. Fujinon MK 18-55 T2.9 and Fujinon MK 50-135 T2.9 (E Mount, EF mount will be available soon), price 3300$ and 3500$
4. Tokina Cinema ATX 11-20mm T2.9 , Tokina 25-75mm T2.9 , Tokina 50-135mm T2.9 Mark II (PL Mount, EF Mount, ...), price 2200$, 5800$, 3500$
5. Sigma Cine Zoom 18-35mm T2 and Sigma Cine Zoom 50-100mm T2 (PL Mount, EF Mount, ...), price each cost 4000$
6. Rehoused by Cinematics Sigma Still lenses into Cine Zoom 18-35mm T2 S35 and 50-100mm T2 S35(PL Mount, EF Mount), price 1500$ and 1900$
So from your list above, I cannot attest to any one of them since I have not used it, or much of any one. I have used the Fujinon MK 18-55 on a Sony FS5 a couple of times and I like the IQ. But that's just one data point that's not on a BMD camera, although I will say that it is one of the lightest lenses I've held.
I am waiting to hear more about the DZOFilm Pictor zoom lenses. I'm told our rental shop will have a couple of copies around next month. It's worth checking out.
I like prime and soft lenses. Depending on the shot I want to convey for the story, the lens has been an influencer for me. Although not the zoom versions, I found the Sigma lenses are bit sharp. I have shot a lot with the Sigma Cine Primes (from the 14mm to the 85mm, T1.5) and I like them for certain genre. Shooting comedies for example, I went with the Sigma Cine primes like this one here where I'm using a 14mm.

- IMG_20190629_212205_1.jpg (34.37 KiB) Viewed 25807 times
So most of the drama oriented genre I shot, I love the Schneider Xenon cine primes. They don't have it in zoom hence may not fall into your category but the price are not terrible. On the affordable side, I also like the Rokinon Xeen Cine lenses. They are soft lenses but can be artsy too, and affordable. I use them mostly on the UMP. The way more affordable Rokinon DS Cine lenses, which you can get a nice brand new set for the price of the most affordable cine zoom in your list. If you like soft, then this are nice and very affordable.
I know you're only asking about affordable cine zooms but let me just throw in some other options.

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