Your question cannot be answered with the information currently available.
"More Famous" is too idiomatic for anyone to provide an adequate answer without poll data from various areas & age groups, perhaps even from different socio economic groups.
Without any data of this sort there is no way to really determine which person is more widely known to the general populace therefore any answer would really be speculation, opinion and/or conjecture from the individual who answered.
bugs
Bugs Bunny is internationally known by several generations of fans .
Bugs Bunny is internationally known by several generations of fans .
madonna
Stitch is more famous than either! he is awesome!
Batman BumbleBee Bluto (from Popeye) Betty Boop Bugs Bunny Barney Rubble Bart Simpson
Bugs Bunny Tasmanian Devil Elmer Fudd Daffy Duck Goofy Spongebob Bart Simpson
Bugs Bunny .
bugs
bugs bunny
Bugs Bunny .
bugs bunny
Bugs Bunny is the one known more worldwide.
bugs bunny
they are both very famous but i would have to say bugs bunny because he has been around longer
Bugs Bunny's mother is never mentioned - the creator of Bugs Bunny was Bugs' Hardaway . There is an episode where bugs goes to a town of the west or something, he goes in to a casino, thinking a slot machine is a phone, he uses a coin to call his un named mother and asks her for money, luckly he hits the jackpot and wins big time
bugs bunny is more famouse