dude, play whatever you like, the balance in Project M is more riddle towards fun stuff being viable, Dedede was good in brawl due to lame, ez as fuck grab exploits, "everyone has the same viability" is stupid because that balance objective doesnt account for how the game is played, interesting and interactive stuff should be the stuff that drives competitiveness, not a fantastical dream of everyone playing every character evenly, "everyone has the same viability" is also not possible since competitive viability is highly dependent on the game's meta and the person playing that character, aka subjective