Would realistic fiction with a martial artist main character be more interesting to people than "comic book super heroes" type character?

So I was thinking of writing an instruction manual disguised as a realistic fiction crime fighting novel, where the hero uses real martial arts to subdue the villains.

Yes, a realistic martial artist is more interesting
No. I actually prefer super powers
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7 mo
I think the answer is "yes", because Batman movies have been some of the most money-making films of all time. Spider-Man has also made huge incomes though.
Would realistic fiction with a martial artist main character be more interesting to people than "comic book super heroes" type character?
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