Although I Adore Clark Kent More.......Superman isn't half bad either ;) He is a classic and very unique character, who has influenced the globe by his superpowers to his weakness to that famous 'S' on the chest. Even people who have never seen the movie, read a comic, or sat through a cartoon, could easily pick out and recognize Superman. He is a fantastic and lovable hero, and all his friends (especially fearless reporter Lois Lane) are all memorable.
For myself, I do love Clark Kent. I love his goofy, clumsy personality, and his sweet charm of a farm boy. Even if his alter ego wasn't Superman, he is still a wonderful character.