Not bad eggs in the sense that the characters are bad people. I meant bad writing, as if the writers are farmers and instead of bringing fresh eggs to market they let a few rotten ones slip by. The Walking Dead has plenty of perfectly acceptable female characters: Andrea, Maggie, Michonne. Lori was poorly written, in my opinion. This is true across the fictional spectrum, as I said. Writers tend to be male, and though they can write women something inhibits them from writing as many complex, believable, and likeable females as males.
Take the other two big AMC shows, for instance. Breaking Bad has two great male leads, Walter and Jesse. Everybody who likes the show loves them, though with Walt it’s turning into a love to hate him sorta thing. Everyone pretty much hates the wife, Skyler, though it’s hard to say why. Some of the heat characters on Mad Men are women like Peggy and Joan. But everybody hares Betty, though Don is clearly a much worse human being. It’s too much to go into why they’re poorly written, but I think they are.
Most of the Mad Men writer’s room is women. I think most people hate Betty for pushing that “smile even when life sucks or it makes me look bad” line on her daughter. Betty’s a really superficial person (not character, person, the character is actually very well developed), who’s is gaining depth, but the depth she’s gaining is mostly through bitchiness.