Once stopped down to F5.6, the Loxia rendering on landscapes is really good. It may have more native microcontrast/3D and a touch more global contrast SOOC with slightly warmer colors. However, I think the files of the CV are more neutral and malleable in post and without much effort look as good or better than the Loxia files on landscape at F5.6. There is certainly no lack of sharpness/resolution, and the files lack any CA. The landscape shots I posted above were all with "daylight" white balance and NO other post processing. It is easy to color correct to have the colors match.
The advantages of the CV 65 are greater over the Loxia at larger apertures than F5.6. I only posted these F5.6 shots because Fred asked about that aperture.