Funny-looking and with a propensity for their joysticks to break just by looking at them, I think the N64 controller is—and I realise this is a relative award—Nintendo's worst ever controller.
Oh. Except this one, by Zoki64. This one's wonderful. Painted in a retro style and with a fabulous glossy finish, it looks so hot I'd be afraid to use it. It'd just sit there. Maybe in a glass box. And if anybody tried to even think about touching it, oh boy, there'd be all kinds of this going on.