yeah uh that kills a player you nub
Fox, Sheik, and Marth have less weaknesses and are generally better characters than the others - as in, it takes much less work to be fucking awesome with Marth than it does to be fucking awesome with Jigglypuff. That's the basis for the tier system of any game - how good a character is.
At the very least, they'll use the classic controller. Logic dictates that using the Wii Remote by itself, given what has been stated and the controls of the game itself, is impossible.
I love Smash Bros. But I'll be the first to tell you that the 'best' players around the world are usually just kids who spam Fox's shine, Marth's forward smash, or Sheik in general.
It's like picking up Soul Calibur 3 and saying 'I'm the best in the world because I'm playing as Night Terror and I know how to breath fire with him and nobody can block that.'
That's not depth.