Of all the motion work I've ever shot, corner to corner sharpness was never a consideration. Sharp wide open and look is what mattered to me. But then again, I filmed human subjects/lifestyle. I also always rented matched Zeiss and Cooke sets.
I think digital has brought in the age of oversharpening. Nearly every lens review talks about corner to corner sharpness, rarely about the look and character of a lens.
For the RED's I have Zeiss in Nikon mount and RED primes in PL mounts. The Zeiss are sharper or appear sharper as they have more contrast and crispness, but they're not as pretty.
The RED PL, have a look of sharpness, with soft roll off and just produces a deeper more cinematic image.
Then again, a lot of this is to taste.
When I bought the 4/3's system couldn't wait to put my Leica 90mm M mount lens on the cameras and was really shocked with the CA and softness of the image, where the mft 43 lenses from Olympus and Panasonic are sharp and almost CA free, though most of that comes from under the hood processing.
Anyway, the prettiest lens I've ever owned is the Hartblei tilt shift (old Russian sourced). Nothing about this lens is sharp, even in the zero position, but it has a character I've never seen in any lens and it is one of the few lenses that produces a look, I can't replicate with processing by moving the sliders around.
Some lenses are pretty, some are brutally sharp, rarely are both at least in what we shoot.
IMO
BC