Marvel Comics VS DC Comics
Connection:
Both are electric supervillains who are once ordinary citizens (Max Dillon and Leslie Willis) until they were struck by lightning which gave them powers and turned them evil
Both are members of a rogue gallery (Sinister Six to Electro and Secret Society of Super-Villains to Livewire) belonging to a red and blue themed superhero (Spider-Man and Superman respectively)
Both use electricity in a similar manner (being able to turn into electricity, absorb energy, reconstruct atoms via manipulating electrons and more) that become more unhinged and dangerous the more power they consume
