For women's, USA and China are my favorites for gold, Italy, Serbia, and Brazil are candidates for bronze/possible spoilers for silver, Turkey is a possible spoiler for bronze. For men's, Brazil and Poland are my favorites for gold, with USA, Russia, Italy, and France as bronze candidates/possible spoilers for silver.
Men Volleybox
Beach Volleybox
I'd say that's China, EUA, Serbia and Italy, than Brazil and Turkey right after
In chronological order, (women's)
i'd say China, Serbia, Italy, Usa and the rest comes after, mainly Brazil/Turkey/Russia(hard to tell)
Men's: Brazil, Poland, Russia and USA.
China without gold medal would be a surprise. Italy, Serbia and USA will fight for silver and bronze
Edit: chaos
Anything less than gold for China will be disappointing
For women's, USA and China are my favorites for gold, Italy, Serbia, and Brazil are candidates for bronze/possible spoilers for silver, Turkey is a possible spoiler for bronze. For men's, Brazil and Poland are my favorites for gold, with USA, Russia, Italy, and France as bronze candidates/possible spoilers for silver.
For women, China is out and placed at 9th, which is the worst result for the Chinese team in the olympics and being as defending champion.