Time to see my sucky tier list!
1. Meta Knight, Snake (BROKEN Tier)
2. Falco, Wario, Diddy Kong (Foils Tier)
3. King Dedede, Marth (I
GRABS Tier)
4. Zero Suit Samus,
Mr. Game & Watch, Ice Climbers
(Impossible to Master Tier)
5. Pikachu, Olimar, Toon Link (Camp Campy Counselors Tier)
6. R.O.B., Kirby, Sheik, Peach, Pit, Lucario (Maybe Someday Tier)
7. Donkey Kong, Sonic (AM I GOOD OR NOT Tier)
8. Fox, Wolf, Ness (Shiny Specials Tier)
9. Bowser, Mario, Luigi (Mushroom Kingdom Tier)
10. Zelda, Ike, Lucas, Pokémon Trainer, Yoshi (Motley Tier)
11. Samus, Link, Jigglypuff (BLATANT Problems Tier)
12. Captain Falcon, Ganondorf (Manly Tier)
All characters in the row of the tier are, in my eyes, equivalently good.
Not really sure about the placement of the tiers below #6, though.