Parker Posey really would have made an excellent Lois now that I think about it.
I don't understand why people keep calling him a deadbeat dad. To me a deadbeat dad is someone who knowingly fathers a child and walks away from him or her. Superman clearly didn't know that he knocked up Lois before he left.
He wasn't a deadbeat dad. Not deliberately. He didn't know. I think some of the distaste for the storyline, though, came from the aforementioned view that Bosworth looked soooooo young and she had a 5 year old. It just seemed.....icky. Too young for the part and she really didn't have that Lois spark even if the director had let her shed some of the restraint. Lois Lane is brash. Sometimes inappropriate. That's why Supes liked her.