I don't see the problem with having an attractive Lois. Magazine photos are made to look extra glamorous. They can be toned down for films. Like Charlize Theron and Jolie for example. They look extra glossy on a magazine but look normal on film. People think that having a hot Lois might overshadow Superman or something but that is not how things work. Many films have hot woman drawn to less attractive men. It's could be about mystique, wealth, or just plain appeal. In real life hot woman are drawn to sports players and artists. If Superman existed in real life you would have tons of beautiful woman swooning over him. If you create a scene where Superman is flying over a crowd and beautiful woman are going nuts people will buy it. They aren't gonna think, hey Lois is pretty hot herself, she wouldn't go for him.