Martians: 1000 Martians, Martian Manhunter, Protex and the Hyperclan, the Flower of Wrath, and Martian war machines.
Asgard: 3000 Asgardian warriors, Thor, Odin, Loki, Borr, and The Warriors Three
Amazons: 3000 Amazons, Hippolyta, Wonder Woman, Artemis, Donna Troy, Wonder Girl, Harbringer
Krypton: 500 Kryptonians, Superman, General Zod, Superboy, Supergirl, and Braniac 1.0.
New Gods: Highfather, Lightray, Orion, Metron, Darkseid, Desaad, Granny, Big Barda and the Furies, Kalibak, Gundbar, Doctor Bedlam, and 2000 Parademons.
Atlanteans: Aquaman, Aqualad, Mera, Lori,Tempest plus 3000 Atlantean Soldiers.
Battle takes place on a beach. No BFR, morals on, no reinforcements.
Amazons and Atlanteans are usually underrated, so may I add that Atlanteans have very high technology, allowing them to have completely bulletproof armor, and their underwater adaptations give them over-human strength (20-40 tons) and speed. They are also armed with extremely advanced sonic concussive blasters. Amazonians are a race bred purely to fight, much like the city-state Sparta. They are pro martial artists, and have over-human strength and speed also. Note that Hippolyta, Aquaman, Mera, Thor, and all the leaders are much more advanced than their own race, physically and mentally. Note that Parademons wield enough firepower in their hands to destroy several tanks, they can fly at high speeds, and are bulletproof.
Please explain briefly and have fun!