Nintendo:
Mario, Luigi, Peach, Bowser, Wario, Yoshi, Donkey Kong, Link, Zelda, Ganondorf.
Pikachu, Mewtwo, Pokemon Trainer, Kirby, Meta Knight, King Dedede, Samus, Ridley, Captain falcon, Captain Olimar.
Fox, Falco, Ice Climbers, Marth, Ike, Ness, Pit, Little Mac, Saki Amamiya, Isaac.
CAPCOM:
Ryu, Ken Masters, Mega Man X, Zero, Morrigan, Felicia, Ryu (BoF), Dante (original), Arthur.
Chun Li, Soki, Saki Omokane, Batsu Ichimonji, Hayato Kanzaki, Strider, Captain Commando, Jin Saotome, Phoenix Wright, Frank West.
M. Bison (Vega in Japan), Firebrand,
Regina, Nathan Spencer, Leon Kennedy, Albert Wesker, Viewtiful Joe, Amaterasu, Rouge (Power Stone), Yukimura Sanada.
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(note, i didn't play sengoku basara so i chose the coolest out if the three in a gameplay trailer)
i really spread it out for capcom, lol... i hate akuma with a passion, i want X in a fighting game for once, Ryu (BoF) is neglected, i needed Firebrand to oppose Ridley, needed a captain in the capcom side since nintendo had 2, i wanted some Dino Crisis love, i have preference for Leon... and i wanted some new franchises for nintendo so i nixed some other characters (jiggz, wolf, MrG&W, etc.)
@Habanero... yeaahhh... no Jill... gonna have to settle for Regina.
@Bartholomew Kuma yeahh... no juri. but i put in M. Bison! there's that!