Can't say I mind if she comes back or not, if it was a choice between her and Nicole I'd rather have Nicole, if thats not an option then she can stay. I didn't find her annoying or a bad dancer she just didn't capture my attention.
Sorry, I don't think I would notice if she was there or not. Her choreography was quite boring and when you look at how Kristina has enhanced John's limited dancing ability, she didn't really learn to work with her partner.