If you want zeiss/leica qualities of micro-contrast and color rendition go with the sony a-mount, ignoring the kit lens and buy some minolta glass.
minolta did manufacture lenses for leica in the past. saying that the adopting parent: sony have no credibility is absolute nonsense.
Sony aquired (and 'are', now) Konica Minolta's camera body business lock,stock and barrel, just a re-badge, in effect. KM had decades of experience in this field.
The alpha bodies are 100% blood-relatives of the alpha/dynax/maxxum SLR evolution.
The minolta 9xi was more advanced in design and spec than any comparable canon/nikon camera. The Nikon F3 was in a class of it's own because its solid construction and attention to precision components, not because of its photographic spec.
KMinolta/Zeiss/Leica lenses produce pictures that have an amazing 3-D, real-life quality to them.
Unless you've used them, you can't diss them.