In the comic books, Lois Lane is an army brat so she is not afraid to speak her mind and fight for what is true and right. This is what initially attracted Clark to this brash, young lady. She is so unlike the women he knew in Smallville (domesticated Martha Kent, shy Lana Lang...). Other than these strong qualities, Lois is resourceful, intelligent and adventurous. Contrary to her movie character, her comic book persona is no damsel-in-distress. There were times when she herself saved Superman from Lex Luthor and other villains. She has also a wicked sense of humor and a soft spot for the downtrodden.
Most important, she came to love the mild-mannered Clark Kent for who he is and not for what he is when in costume. For this and other reasons, he finally revealed his secret identity to Lois in SUPERMAN vol. 2 no. 50 and proposed that they get married...but she refused. (That's a different story, however.)
3 Jan 2007; 1:14pm, Philippines
Reading comic books since the early '80s. Try to read John Byrne's MAN OF STEEL #s1-4 and Mark Waid's SUPERMAN: BIRTHRIGHT #s1-12 for more details.