Real factor here is Supes. But I think Exes' team has enough knowledge and power to BFR/use psi against Supes. Especially with prep and list of names.
Voting Exes in a very very close call.
against a team that doesn't really have any psi defense, with a Moondragon whose entire schtick through the 80's is that she pretty handily mind controls multiple people at once, even those who have been significantly resistant to mind control.
I think its highly likely she ends up with at least a couple of the other team turning sides, making the difference.