5. Boomerang
Created by Stan Lee and Jack Kirby, Boomerang first appeared in Tales to Astonish #81 in 1966. He was listed under the category of D-list characters and is known to be one of the rogues of Spider-Man. He appeared as a lead in Superior Foes of Spider-Man by Nick Spencer. We know he would not match the level of Doctor Doom, but he could have been given god powers.