The villain who Marvel basically ripped off to create Thanos, Darkseid could take The Mad Titan out in a heartbeat. This is after all an alien dictator who rules over his own planet (rather ominously known as Apokolips) and spends his free time travelling between alternative Earths and brutally murdering the different versions of Superman he comes across until he can get his hands on the real deal. Darkseid is also responsible for killing Batman, and even when a team of Godlike beings such as the Justice League come together to face him, they only ever really seem to succeed if luck is on their side. He's a true force to be reckoned with!
