Who would win? all villains of DC or all villains of Marvel (explain)

DC; even though Marvel has characters such as Thanos, Galactus, etc., DC has their equivalents, such as Darkseid, which would beat Thanos, (Hand-to-hand: Darkseid, due to omega beams and super strength, Powers: Darkseid, even though Thanos has the Infinity Gauntlet, Darkseid would have the Anti-Life Equation, which would ultimately give Darkseid have the upper-hand from the start. Of course, there would be chances where Thanos would win, it really depends on the environment.) Most of these fights would happen between super-strong cosmic villains, not iconic human villains, like the Joker or the Green Goblin, which would die instantly in a fight this scale.