Last night's episode was easily the best of s4. The balance of survival action and plot was exactly what I look forward to when I watch the show. There was an honest sense of danger where you weren't sure if any given character was vulnerable (save for Rick I would say.)
Speaking of Rick, I think he did the right thing. It's a tough call and depending on who was involved, I could have swung either way on that call. But I think all things considered, it was the right way to go.
On that note, if it were up to me, Tyrese and alcohol-man would have been hitting the heel-toe express to fuckoffityville given their actions of late.