Minnie.
When I got her, her name was Wilhelmina. I said I was not opening my front door and shouting "Willy" for anybody. Minnie was the closest. Not that she pays the slightest attention.
She also delights in the following variations: Min-Min, Minski, Minski-Moobles, Minindra - Destroyer of the evil Meece Hordes (and no, I'm not a Game of Thrones Fan) and Thunderpaws.