Asuka - the 8th doll of the Rozen Maidens.Ends everything she says with "Anta baka!" instead of "desu!"
Do you realize how incredibly annoying that would sound? It's bad enough she abuses that line in the movie.
But... come on! if she's not a redhead with blue eyes who says "anta baka" a lot, then it means she's not Asuka!
This is the same logic that implies that Soryu and Shikinami are the same.