I love her on 90210! At first I thought Adrianna was just annoying, but when she became more 3 dimensional, I realized why she was doing those things. I think Jessica does an amazing job in portraying her. By far the most dramatic - and interesting - role on the show
I also love the Adrianna/Navid relationship, and her friendship with Naomi. :-). I thought the scene where her and Navid got back together was the cutest thing I had ever seen.