The Hurricane!
Although the Honky Tonk Man, the Million Dollar Man, Irwin R. Schyster, Isaac Yankem DDS, Doink the Clown etc were great because they were kinda believable, (cocky Elvis impersonators, arrogant and conceited rich men and accountants/evil tax men do exist you know! Plus we all know dentists and clowns are shit-your-pants scary ... ) the Hurricane is so great because Super Heroes do not exist...
Wait a second. Look, up in the sky! It's a bird? No, it's a plane! No, it's
SUPERMAN! Can I withdraw my last comment?