Man, I could have sworn she killed the people in the tent when Renly died (though in self defense) but it appears on a reread that she only maimed them.
That said, Brienne is my least favorite PoV character in the books.
BOOK SPOILERS
There are two main complaints I have about PoV characters.
1.) They aren't enjoyable to be in the head of.
Brienne is annoying/frustrating/boring to "listen" to, fitting into the mold of characters like Sam and early Sansa who I just don't want to have to listen to.
2.) Nothing worthwhile happens around them.
The reason both early Sansa and Sam rank higher for me is because their PoVs have interesting stuff happening around or too them. Sansa has direwolves attacking Joff, the Hound's story and the Tournament, and finally after everything she ends up with Chessmaster Littlefinger. Meanwhile, Sam kills an other, kills a wight, sees Mormont die, and then hangs out with Aemon (giving us some cool tidbits) and sees Braavos and the Citadel. He even unknowingly sees Jaqen.
Nobody proves the "surroundings can save a PoV" more than Areo Hotah. The guy has negligible personality, but he's our eyes on Dorne.
But in Feast, we know that Brienne is on a fool's errand, and until her final two chapters she doesn't really do anything significant to the plot. It's so much worse because we KNOW that nothing she does is going to be meaningful. Instead, her chapters just drag on on meaninglessly with such all star characters as Podrick Payne (who for some reason a lot of peoploe are fans of, is it just because he saved Tyrion?) giving us "worldbuilding" that is ultimately unsatisfying.
I was okay with Brienne in Storm. She was a well written character and understandable. She continues to be well-written and understandable in Feast, but being a developed character does not make her enjoyable, and I liked her a hell of a lot less as soon as she got that PoV.
--
http://img.imgcake.com/drakeryn/alecjpgyn.jpg -Drakeryn