Pikachu, it's obvious, if you ask someone who doesn't know much about pokemon, they always say pikachu. try it!
simba
pikachu is more famous
in japan pikachu is more famous
Pikachu
Simba
Neither of them are more famous than the other
Mario considering he was made before Pokemon and Pikachu. .
pikachu
Pikachu
pikachu
Pikachu
pikachu