Your question cannot be answered with the information currently available.
"More Famous" is too idiomatic 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.
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Taylor swift because she is famous to even little kids like 3 or 2 year olds!
Batman. Everyone who is a someone has heard of Batman.
well that is just a stupid question from a stupid person Pikachu is just a cartoon so Taylor is a real person so i will have to go with her :P
They are equal
Batman cause he's a super hero billionaire.