Who Would Win?

Otto Gunther Octavius

Scientist, criminal mastermind

Genius-Level Intellect, Mechanical Tentacles, Superhuman Tentacle Strength, Telepathic Tentacle Control, Expert Engineer, Radiation Specialist

Four titanium-steel tentacles (mentally controlled), various inventions

Thunderbolts Army; Former leader of the Sinister Six and the Masters of Evil V; Former partner of Green Goblin

Uxas

Ruler of Apokolips, God of Tyranny

Flight, Super Strength, Super Speed, Stamina, Invulnerability, Telepathy, Telekinesis, Intellect, Teleport, Force Field, Blast Power, Healing, Super Sight, Feral, Psionic, Insanely Rich, Gadgets, Divine Powers, Size Manipulation, Immortal, Necromancy, Tracking, Astral Projection, Animation, Energy-Enhanced Strike, Reality Manpulation, Matter Absorption, Dimensional Manipulation, Energy Shield, Siphon Lifeforce, Power Mimicry, Gravity control, Darkness Manipulation, Heat Vision, Earth Manipulation, Marksmanship, Power Item, Death Touch, Energy Absorption, Energy Manipulation, Cosmic Awareness, Heat Generation, Leadership, Longevity

Omega Beams, Apokoliptian technology, parademons army

Alien Alliance, Dark Army, Darkseid's Elite, Intergang, Legion of Doom, New Gods, Secret Society of Super Villains