So here we are with the first battle between the two top Micro Four Thirds lens. Which one is better? The manual focusing and ultrafast Nokton or the new, cheaper and autofocusing Leica lens? At SLRclub you can find the answer! A forum user just posted an image comparison you can see below (Click on image to enlarge). As you see the Panasonic lens is much sharper at the center of the image (at f/1.4) but the border performance of the Nokton is still better than the border performance from the Panasonic. This is so because the Nokton has a much larger lens.
If you prefer the manual focusing and ultrafast Voigtlaender lens you can get it right now at eBay (Click here) and at Amazon France (Cheapest price),
The Leica will be available in early August and you can preorder at Adorama (Click here), J&R (Click here) and Digitalrev (Click here).