Whos the most powerful Superman, Hulk, Silver Surfer or Dr Manhattan and why?

I was just wondering what all of you think?Whos the most powerful Superman, Hulk, Silver Surfer or Dr Manhattan and why?Dr. Manhattan because he can manipulate reality (provided he has already won because he sees all time because time exists and has always existed in a singularity that he can see).Whos the most powerful Superman, Hulk, Silver Surfer or Dr Manhattan and why?Superman cus his pants make him buffWhos the most powerful Superman, Hulk, Silver Surfer or Dr Manhattan and why?dr. manhattan... his powers are akin to a gods