I have a general tier list. There might be one or two characters out of place, and the specific order within tiers is not accurate, but here goes:
MY Smash tier list:
S(broken/top): Sheik, Mii Brawler(kinda gimmicky but it works)
A(top 5/10 candidates): Rosalina, Ness(with customs, S tier)what?, Luigi, Diddy Kong, Sonic, Zero Suit Samus, Yoshi, Captain Falcon Falcon is B tier
B(High): Pikachu Pikachu is A tier, Olimar, Lucario C, maybe D, Mario, Fox A tier too
C(Good): Pit/Dark Pit, Villager(with customs, A tier), Game&Watch, Greninja, Toon Link, Link, Peach, Rob, Bowser what?, PacMan, Falco, Marth, Duck Hunt, Ganondorf
D(Average/Poor): Shulk, Jigglypuff, Charizard, Donkey Kong(with customs, A tier), Meta Knight ridiculous, Megaman lol, Robin, Mii Gunner, Ike not at all, Bowser Jr.
E(Bottom 5/10 candidates):Falco no and he is in C too lol, Kirby the worst placement, Palutena(with customs,B tier) , Samus, King Dedede, Zelda, Doctor Mario, Little Mac at least D, maybe C