Capcom/SNK vs. Jump Heroes(shonen Jump)/Marvel. It would take a completely original enemy though to pull this off. It would end up being a mess of a story, I know, But character wise it could be good...maybe 10 per side for 40 total..to try to keep balance
Capcom: Really try to limit SF characters
Ryu
Ken or Akuma
Chun Li
Dante
Vergil (bad guy)
Morrigan
Haggar
Viewtiful Joe
Amateratsu
Leon S. Kennedy
SNK: Could need work, my knowledge of all snk is limited
Kyo
Iori
Terry
Ryo
Mai
Geese
Kim
Athena
Joe
Rugal
Jump Heroes: This really needs work
Goku
Naruto (Shipuuden)
Sasuke (Shipuuden)
Yusuke
Ichigo
Kenpachi
Yoh Asakura
Monkey D. Luffy
Gintoki (from Gin Tama)
Original Villain (Let Jump design her, yes..this team needs chick)
Marvel: Did the best I could
Captain America
Iron Man
Wolverine
Hulk
Magneto
Spider Man
Doom
Deadpool
Thor
Storm or Phoenix
Looking at the list now...This may be a really bad Idea.....(sinks into corner) Never mind...
EDIT: Forgot apcom need a rep from Megaman....Either X,Zero or EXE to replace Viewtiful Joe
Capcom: Really try to limit SF characters
Ryu
Ken or Akuma
Chun Li
Dante
Vergil (bad guy)
Morrigan
Haggar
Viewtiful Joe
Amateratsu
Leon S. Kennedy
SNK: Could need work, my knowledge of all snk is limited
Kyo
Iori
Terry
Ryo
Mai
Geese
Kim
Athena
Joe
Rugal
Jump Heroes: This really needs work
Goku
Naruto (Shipuuden)
Sasuke (Shipuuden)
Yusuke
Ichigo
Kenpachi
Yoh Asakura
Monkey D. Luffy
Gintoki (from Gin Tama)
Original Villain (Let Jump design her, yes..this team needs chick)
Marvel: Did the best I could
Captain America
Iron Man
Wolverine
Hulk
Magneto
Spider Man
Doom
Deadpool
Thor
Storm or Phoenix
Looking at the list now...This may be a really bad Idea.....(sinks into corner) Never mind...
EDIT: Forgot apcom need a rep from Megaman....Either X,Zero or EXE to replace Viewtiful Joe