Najinsky: All I can say is you guys got it well wrong. A7 is a spectacular camera.
It is, and it got lots of votes. But A7/A7R are at a disadvantage because they are two products. One can make the argument that they should really be one selection in the poll instead of two. Combined they are pretty close to Olympus, but look at how popular E-M1 is on this forum, how many owners of this camera vs. any other camera on this list.
I own the 12-40mm from Olympus, but I voted for the Otus. It's close to the leader in the polls because of how many people own it. 258 people vs the Sigma which has just over 100 owners.
Both the Otus and Sigma 18-35 are landmark lenses because of their contribution to the lens ingenuity.
The Otus for its raw resolving power, and the Sigma for closing the equivalency gap between aps-c and full frame.
The Olympus already has a very similar offering, and even with the better macro capability, the snap focus ring, and edge sharpness wide open, it's just not that much better than the Panasonic 12-35mm to be considered on the same level as the Otus and the Sigma.