Needless to say that there is a wide range of prototyping tools out there and I won't say which one are the best ones because there isn't one. I liked to say it all depends on your workflow and what's your purpose of this tool.
The Olympic Games in Rio is over and now we have to wait another 4 years for the Tokyo games. There was a lot to like about this year, at least for me. First, it was in Brazil, my home country and second everything went well. With these massive events there's a big push in terms of promotion from media companies to create apps to garner fan attention. Leo Natsume shared a beautiful UI/UX project on Behance that is, for me, one of the best I've seen this year. The animations, the UI, everything from a visual standpoint is top notch. Check it out.
We developed a website with lots of animations and all Olympic sports for project for ZH OURO. The spread of this digital product is to present the medals of the winning countries and a comparison with Brazil, the host country of the Olympic Games Rio 2016 - Behance
The project was done by the Grupo RBS. For more information about Leo Natsume check out https://www.behance.net/leonatsume