In my opinion the IOC was very generous in awarding the 2016 games to Brazil. With a 2.4-trillion-dollar economy Brazil has the potential to host a successful Olympic games but still the IOC has taken a bit of a risk on Rio.
The venues are behind schedule and both scandal and protest are nipping at their heels. Hence, I feel the 2020 Olympic Games should be held in a country with a robust economy and proven infrastructure.
The competing host cities, Istanbul, Turkey and Madrid, Spain are very fine countries but I am not impressed with size of their economies. Hosting the Olympic games is expensive. Though Turkey is an emerging nation it Gross Domestic Product (GDP) is still half that of Mexico. Spain which has a more affluent economy than Turkey has a GDP that is five-times smaller than the GDP of Japan.
I believe an established nation or a nation with the creativity and the economic wherewithal to host these games should receive the honor. I hope they choose Tokyo, Japan.
From France 24:
Istanbul, Madrid and Tokyo will all be sending high profile delegations to hand over their dossiers which have been painstakingly put together and will be hoping the details meet with the approval of the majority of the 100 plus IOC members when they vote in eight months' time.
With IOC members visits a thing of the past, since the reforms brought in following the Salt Lake City bribes for votes scandal, the dossier will be carefully studied before the all-important visit of the IOC Evaluation Commission, headed by IOC Vice-president Craig Reedie, to the three cities for four day visits in March.