"More Famous" is an arbitrary concept. There is no way to properly gauge which one is known by a majority of the general public without doing extensive polling.
Since that data does not exist any answer provided by the participants of this site would only be opinion based and not a substantial answer.
fred flintstone
fred flintstone
fred flinstone is way more famous
Batman
Fred Flintsone is more popular
Spider man
bob marley
It depends on what age range you are looking at. More of the older generation will remember Fred Flintstone and hardly even know about Rihanna, whereas the more modern generation will know about Rihanna and will never have heard of Fred Flintstone.
Usain bolt is INTERNATIONAL
fred flinstone because he is an all- time favorite cartoon character! lady ga ga is famous but not really anymore she was like a "one hit wonder" and thats its.
homer Simpson by far,as the Simpsons are more popular.
It depends, a lot of older folks may say Fred, but v with marvel becoming more and more spoken about you probably know The Incredible Hulk more.