whoever written well. i typically read GB story since fem protagonist's story often act very out of their gender. they would often steel into romance domain (where this strong girl suddenly fallen for this strong guy, this dominant male for no reason) , or this girl act like a man for no reason, because the author apparently also a man. to write a fem protagonist was very hard, since they have a week of nerf each month, where their emotion is unstable...
For GB story, while this girl act like a man, it reduce the illusion that it's actually a woman, make it more believable when they act like male.
For male protagonist? whoever funnier is winning in my opinion.
nonbinary protagonists also interesting tho.