Olympics is greater than WTF because of two key reasons:
1. It is held once in four years, making the chances to get the title less in a player's career.
2. Getting an Olympic gold medal is much more popular around the world than getting the WTF title. Non-tennis fans can appreciate the medal more than the WTF title. It's more prestige gained inside the biggest sporting competition on the planet.
But we are hard-core tennis fans and we know better!