dpreview has released their product awards for 2017: The Sony a7R III (Amazon, B&H, Adorama) defeated the Nikon D850 as the product of the year 2017.
From dpreview:
You guessed it – one of the last cameras released in 2017 ended up taking the top spot. The Sony a7R III is a truly impressive camera, which combines advanced stills and video features in a body designed to satisfy the needs of professionals and enthusiasts alike. While the a9 is faster, and features an autofocus system better optimized for shooting sports, the a7R III is a mirrorless interchangeable lens camera for the rest of us, and a well-deserved winner of our award for the best product of 2017.
The Sony Alpha a9, RX10 IV, FE 16-35mm f/2.8 GM Lens also get dpreview awards of 2017.