I'd say Katniss, mostly because I'm not a big Harry Potter fan, but from a literature standpoint they all have their weaknesses. I actually wrote a paper about how the have to make Katniss masculine to make her a hero. Although some would say her bow and arrow are a symbol of the cross between yonec and phalic (symbols of penis and vagina) making her practically asexual. Oh well. That's my rant.