Which crossover games do you want the most?

[GameMasterPC]

Bofferbrauer said:
Ain't the Soul Calibur x Mortal Kombat on your list against your second rule (different genres)?

Else I would have said Splatoon x Call of Duty = Calamari of Duty

No its not because Soul Calibur is a 3D fighter and Mortal Kombat is a 2D fighter.