I Love Abby...I love the relationship that her a Gibbs have. And I especially love how they have her all tattoo'd out and goth. She is for sure one of my favorite characters on the show.
Definitely love her as a part of NCIS, she's almost a comic relief in all the serious business that goes on in the show. I always look forward to when anyone has to go see her to see what wacky thing she will be doing.