DC Team: Aquaman, Booster Gold, Geo-Force, Steel
Marvel Team: Hulk, Iron Man (Extremis Armor), Storm, Wonder Man
All DCs pre-52, random encounter, in character, no BFR. Battle on Earth, starting 20m apart. Win by KO or death.
Aquaman is the version in the pic. No extra equipment for him (i.e. no Trident).