Meanie.
I was hoping not to answer. It's too hard to choose. Wahhhh.
If I have to say, I guess I'd go with Angela Clark from The Cape. She had the most character development of anyone I played and she was such a fantastic mix of strong and vulnerable. I put more of myself into her than any character, though we were still very different. Shelby from Daughters of Salem is a close second. She was deliciously bad (with the possibility of good)/fun to play.
I want everyone to answer this impossibly hard question so, SAME QUESTION TPBM!