I prefer the original. Her dance scene alone is more iconic than anything her replacement ever did on the show. I don't even remember Aunt Vivian 2.0 doing anything worth mentioning.
If I'm correct, She didn't want to be on the show anymore because of Will's attitude and she wasn't satisfied with not being the main character or something along those lines.
Original. They dubbed down Viv #2 so bad. They never showed her as a professor anymore, she didn't have the style Viv #1 had, and her acting was downright horrible. That's when the show started going down hill for me.
The original. She was such a good actress & she could sanngg and dance her ass off too. She actually seemed like an overwhelmed professor/mother of 4. The new Vivian was a terrible actress and such a watered down character in general. She always seemed like she didnt care about what was going on in the household.
I'm probably the only person who preferred Aunt Viv 2.0.
She exuded a quiet confidence that really appealed to me. I also liked how classy and composed she was.