I know this is contrary to what most will tell you, but I love my Canon 24-70 2.8 L for video, and for almost all of my work.
I know it doesn't have mechanical aperature control, but I have done fine with the electronic controls.
I have a large stock of prime lenses, but tehy never get used. I have the Canon 24 2.8, 40 2.8 STM, 50 1.8, 90 TS-E (tilt shift.) I just sold my Canon 85 1.2 and the 45 TS-E. I also have the Zeiss 28 2.8 and 35 2.0 ZE.
Yet teh only lenses that I really use are my 24-70, and the 70-200 when I need more reach. I am thinking of selling all of teh rest of my lenses, with two exceptions.
I have the Canon T4i with video auto focus. I bought the 40 mm STM and 18-135 IS STM lenses to use on teh T4i for video. They feature silint focus mechanisms, and they also focus in a more pleasing manner for video. I plan on keeping those two lenses.
If you do decide to go for manual lenses, the Zeiss are a decent choice. I also really like the focus on the TS-E lenses. They have a very long throw, and you can use the tilt for creative control of depth of filed, either to increase or decrease depth of field. The shift function is also very useful to avoid converging lines in architectural shots, etc.
They area bit slow at 3.5 or abouts. But the older TS-E (24, 45, 90) cost about $875 used, which is about the cost of ther Zeiss used.