I agree, I know somebody who will never NOT use the gamepad, and then I got to try it once and I failed so miserably omw... XD I'm much better with the original controllers, something about the gamepad is awkward to hold.
The nunchucks and pro controllers are much easier fer me.
What's the difference betweent he pro controller and the Wii remote from le original Wii?
Probably. When I played Smash one time with my friends, I had hit or miss results with the Gamepad, but cleaned house with a Wii Controller + Nunchuck.