I wonder what's up with the idea that it's got to be a girl we can all like. I mean, the big idea with a protagonist is that it ought to be someone with whom the reader can identify in some way. But it almost seems like the female protagonists are sometimes expected to please every reader (or be a cautionary tale but that may just be that I've been reading East of Eden at the moment) while a male protagonist might get more range of behavior and interesting flaws and it still works. Case in point, imo, Wonder Woman. She's supposed to represent every woman and as a result seems to not have any personality at all to me.