Pheniox vs. Superman
Storm vs Wonder Woman
Quciksilver vs Flash
Iceman vs Aquaman
Archangle vs Hawkman
Wolverine vs Batman
Cyclops vs The Ray
Gambit vs Green Arrow
Psylocke vs Black Canary
Cable vs Green Lantern
Rouge vs Supergirl
Bishop vs Martain Manhunter
Phoenix
Flash
Iceman (although if he even for a moment takes Aquaman for granted he can easily and quickly lose)
Hawk man
Batman (I am assuming Bruce uses his gadgets and doesn’t try to trade reverse punches and crescent kicks with Logan)
The Ray
Draw between Gambit and Green Arrow (there are some more powerful iterations of Gambit though that are crazy)
Psylocke
Green Lantern
Supergirl (again, assuming this is a fight and not a hugging contest, SG has too many ways to take care of Rogue)
Martian Manhunter (see comments for SG ...while MM is treated with disrespect by his writers, in a forum setting Bishop has no chance)