it all comes down to preference of how u like ur stories.think of DC as Greek mythology with its gods, heroes, etc. and Marvel as Shakespeare, with its flawed, pained characters.
however, its unfair to think that DCs heroes are perfect and Marvels are more human. Wolverine is a guy who basically cant be killed, how is that human? Spider-man had to make a deal with Satan to save his aunt from a bullet meant for him, how is that human? Superman, with all his powers, knows that he is alone in the world and despite his strength, simply cannot be there at all times hes needed. Batman, with all his money and gadgets, will never achieve what he wants more than anything, to bring back his dead parents. when u think of it that way, who sounds more human, DC or marvel?
oh, and Lois lane and jimmy olsen know both know clark is superman and lois has been married to superman for YEARS.