Team Superman (DCEU)vsTeam Hulk (MCU)

Team Hulk (MCU) Hulk and thor defeats Superman, Aquaman may be strong but he is fodder compared to these characters, rest get defeated by captain marvel and doctor strange , only problem is flash but Wanda could just delete one of his legs with her reality warping, and if this is an enclosed area nobody can escape or run away from like a arena they would def win as Thor could just fly up and Thunder strike everyone with his thunder and this would not kill flash but would hurt him and he would have to heal first and Thor could use this time to kill Barry, if not They could still win with the strategies i listed above

Neutral Team 1 has more power. Team 2 has more speed. Hmm...

Team Hulk (MCU) Thor beats Superman
Carol beats Diana
Hulk beats Aquaman
Wanda beats Billy
Dr Strange beats Kara Zor El
Iron man beats Flash
And don't forget Dr Strange can solo