Domino's power is very hard for street level heroes to overcome. That the only character who would be pretty much impossible for her to luck into a kill, Lady Deathstrike, clinches it for team Fox IMO. Lady Deathstrike herself might be too much, being a Wolverine-tier regenerator with Adamantium bones.
SHIELD stomps. Nobody in the other teams can keep up with Yo-yo, and with her prosthetic arms can do a lot of damage. Quake at regular levels can one-shot majority of these players. Quake at full power can probably solo.
Colleen needs more feats at her current level. We don't have any idea how powerful attacks from her [SPOILER - highlight to read]: chi-amped katana are, whether she can use it to do similar AOE attacks like the Fist etc. In theory at least, she should be able to do King Arthur, Legend of the Sword-type chi slashes, but that's purely speculation on my part. Same goes for threads using current Danny and his [SPOILER - highlight to read]: dual chi pistols.
__________________ Never take life seriously. Nobody gets out alive anyway.
With her luck, the fight takes place in Alkali Lake and the fight eventually moves into that room with the molten adamantium and by chance she happens to slip and impale herself onto the adamantium injector needles why her foot accidentally flips the power button.
__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk