I disagree about baby Judith. They should kill her off, and soon. She is just dangerous dead weight.
The character of Judith showed her value in this last episode -- she can easily be seized by bad guys who leverage her life as a threat. The baby actress performed well in the role, too.
Also, the fact that Judith bogs down the group provides a challenge they would otherwise be running low on, since they've at least twice proved capable of breaking out of captivitywhile destroying a large, well-organized established community. And it's not like the zombies seem particularly scary at this point. The living can almost always easily outrun them, and/or smear themselves with guts as a zombie shield.
Plus, TV shows generally hesitate to kill children, because audiences find it so horrific. Off the top of my head, I can't think of many examples of children dying violently on TV. Breaking Bad did once have a kid get killed, but the kid was a drug-dealer so I suppose that mitigated it for some people. So the will they or won't they question adds a tiny bit more suspense to the show.
Carl comes with a demographic so I don't think they'll kill him off anytime soon.
Oh. I see what you're saying. Well, couldn't they find a slightly less annoying actor and character to fill that function? Seriously, Justin Beiber would be more tolerable.
However, I do want to point out one good thing about Rick. I don't love his character, but the actor who plays him is charming and funny, judging from his appearance on last season's Talking Dead. If only they'd let Rick the character show a sense of humor more often. I mean, ever.
The actor is also British, and as far as I can tell he does a pretty decent Georgia accent.