Bringing this over from the Finale thread:
Emma infuriated me in parts of S2A and 3B. She does have a bit of an attitude about herself. However, that is her character flaw, and something that is more understable than many the other characters in the Show have. In many ways, JMo's take on the character reminds me of Juliet from LOST. It took me a while to warm up to Juliet, but she was one of my favorites by the end. I think (and hope) we will see a softer side to Emma coming up in Season 4. The whole "walls up" thing was overplayed by 3B.