I was in Batis lens presentation few days ago.
Both are marvellous but both has focus-by-wire system and no hard stop.
OLED display scale is pretty neat, Zeiss representative says that lens somehow re-calculate DOF values for different camerasa (like A7s and A7r with much denser sensel) but in short time we unable to check it carefully.
Also i made a quick comparison with Sony-Zeiss 2/24 from a-mount - really good lens.
And i found that on a7R Batis is sharper on edges and corners towards F5 or so on. Distortion is very low, flare resistance is exceptional (a biggest flaw of the 2/24 Distagon is red flare over the sun's opposite side of the image), CA is pretty well controlled too.
And it twice as lighter 'cause they use more plastics and no lens-adapter.
Lens-shade is also plastic and looks very cheap (Zeiss confirmed it;-)
There some RAWs 24 and 25 side by side
https://yadi.sk/d/3LOMlXwlhTXLXThere is close-focus "brick wall" test files
https://yadi.sk/d/QP454qA4hToiVThere is some out-of-focus and central area sharpness side-by-side
https://yadi.sk/d/dnNCnwvuhTojQAnd there is quick hand-held comparison wih high-contrast wide-angle scene - for CA and spherochromatism.
https://yadi.sk/d/Ur-E3R-WhTotf