I'm thinking since they know each other it will come down to Magik vs CB and C/J vs Psylocke.
C/J will most likely win 90/100
Magik will win 50/50, if she can get C/J's help then CB will go down 100% of the time.
Knowing this though the Braddocks will probably try to switch. If that is the case. Then I have no idea who the winner will be.