I know people would completely disagree with me (maybe only 100% of them), but since I plan on getting both versions (the 3DS first because I don't have much money for the Wii U) I was hoping that the 3DS would be a controller. Now, don't tell me that it won't happen because I know that it is VERY unlikely (unless Sakurai said it won't happen, please link the interview), but here are my 2 reasons.
1: It lets my family choose whatever control they want, because we usually fought for the Classic controller, since I don't use the GCN anymore.
2: I have 1 controller, so I don't have to get used to playing two things (like how I had to switch from a GCN to the classic controller *shudders*). And yes, I do use parentheses too much.