Double flip on the lovely/horrible posts: who is the most Interesting/Complex character from JW books?

I think Mrs Wilberforce is very complex, and I really love her character. I really appreciated how her harsher side is given understanding and sympathy from the narrative, rather than being used to portray her as 'mean'. Her critiquing books like Heidi and What Katy Did was fab, and clearly was the beginning of JW thinking up 'Katy'! (Another fave of mine.) The implications about Mr Wilberforce and Frenchie break my heart for her.

Who do you find the most complex and interesting? And ultimately, do you love, dislike, or not know how to feel about them?