Choose Four

[WeirdChillFever]

Mario:
Mario
Luigi
Peach
Bowser

Wario:
Wario
Mona
Ashley
Jimmy T.

Yoshi:
Yoshi
Birdo (like Waluigi AT is under the Wario flag now)
Kamek
Baby Mario

DK:
Donkey Kong
Diddy Kong
Dixie Kong
King K. Rool

Zelda:
Link
Zelda
Ganondorf
Tingle

Metroid:
Samus
Zero Suit Samus
Ridley
THE BABY:
Recurring, more remembered than Anthony could wish for and unique.
The ultimate shock character

Kid Icarus:
Pit
Palutena
Hades
Medusa

Kirby
Kirby
DeDeDe
Meta Knight
Bandana Waddle Dee

Pikmin:
Olimar
Louie
Bulborb
Plasm Wrath

Star Fox:
Fox
Falco
Wolf
Andross

F Zero:
Captain Falcon
Jody Summer
Samurai Goroh
Black Shadow

Pokémon:
Pikachu
Mewtwo
Lucario
Sylveon


Fire Emblem:
Marth
Ike
Robin
Roy

Earthbound:
Ness
Lucas
Ninten
Porky

Other:
Villager
WFT
Little Mac
Miis

Retro:
Mr. G&W
Balloon Fighter
R.O.B
Excitebiker

Third Party:
Sonic
Mega Man
Bomberman
Pac-Man

Cut from Brawl:
Poké Trainer
Ice Climbers
Snake
Toon Link
Jigglypuff

Cut from SSB4:
Rosalina
Greninja
Lucina

 

[andimidna]

Mario
Peach
Rosalina
Bowser

Luigi
Yoshi
Wario
Paper Mario

DK
Diddy
Dixie
K Rool

Link
Zelda
Ganon
Midna
(Sorry Ghirahim, Sheik, Vaati, and Impa)

Kirby
Dedede
Meta Knight
Magolor

Samus
ZSS
Ridley
Kraid

Marth
Robin
Anna
Tiki
(Sorry Lucina, Ike, and Lyn)

Pit
Palutena
Medusa
Viridi

Sonic
Mega Man
Pac-Man
Snake