12 Comic Book Heroes More Powerful Than Superman
3. Gladiator
Gladiator actually owes his existence to Superman: he was named in homage to 1930 Philip Wylie novel Gladiator on which Superman was partially based and his name, Kallark, is a combination of Kal-El and Clark Kent. He's basically doubly Superman.
Inevitably, his powers are also very similar to Supes': he can shatter a planet with his super strength, he boasts superhuman speed, stamina and durability, X-Ray vision, heat vision (which can get hotter than a star)m super breath, frost breath, a healing factor and warp speed flight. Sure, he's vulnerable because his powers grow based on his confidence (so call him fat and he'll be a push-over, presumably), but in almost every way, his powers are the same as Superman's, only amplified onto another level entirely.