There is not enough statistical data to answer this question properly and without the adequate amount of information (via poll or survey data), any answer would simply be opinion based and not a substantial answer.
Shadow the Hedgehog
Buzz Lightyear
I think buzz lightyear is more famous
buzz lightyear
Buzz Lightyear
Harry Potter is more famous than Buzz Lightyear.
buzz light year. because he is amazing
In my opinion, it is Buzz Lightyear. Everyone has seen Toy Story or have at least heard of it. All children will know who Buzz Lightyear is as they will have watched Toy story but I can almost guarantee that if you were to ask children who Nelson Mandela was, they wouldn't know. Although, as they grow older, they should know who Nelson Mandela is.
i am going to guess that Buzz Lightyear may be more famous, but honestly, I don't know how to tell which one is more famous.
Buzz ,he is in a newer movie
Buzz Lightyear he's known around the entire galaxy
Pikachu