They can't take Lori out early enough in season 3 for me.
Glad they iced Dale too. The guy was annoying and had one expression -- indignation.
Too bad Shane had to go, but he went off the reservation a long time ago. His transformations, when he was dead and turned, and when he snapped in the barn right before taking out Randall, were both pretty good.
Looking forward to some new characters.