1. Nice to see a new face around here.
2. You spelled the name of the planet wrong (unless they're fighting on apocalypse the mutant).
3. Fighting on Apokolips gives darkseid the home field advantage.
4. Darkseid has already smashed entire pantheons and is heavily hinted at being more powerful than all of the Greek gods. Ares gets wrecked (doubly so if this is new 52).