I'd kinda like a 'Thunderbolts' style team of mutants more traditionally associated with villainy, but would prefer a lineup made up of people from Mutant Force/the Resistants, the Acolytes, the original Hellions, the Mutant Liberation Front and maybe even the Nasty Boys or Dark Riders, than most of these people. I definitely think there's some potential, and a lot of interesting characters tucked away in those groups (Tempo! Catseye! Frenzy! Unuscione! Mellencamp?), that could shine with a little development.
And wow, how much has Havok fallen to be on a team with Nanny, Orphan-Maker, Scalphunter, etc. "Let's make a team of villains and outcasts! The last people anyone would expect! Oh, and that 'call me Alex' jerk! He's at least as bad as the architect of the Morlock Massacre!"