She really is an incredible character, and a relatively sympathetic villain. She's earned her place as one of my favorite Star Wars characters of all time.
I agree. Looking at her life you can feel sorry for her. Cast out by both Jedi and Sith, it really makes you feel sorry for her. She's such a great villain with real motivations. Not like Sion and Nihilus where it was like "Kill everything". While that was kind of what was going to happen with her plan, but it wasn't her intent.
Looking back at her, I gotta say that she's one of my favorite Star Wars villains.