I like the classic set up, I think Superman works best when he's more enigmatic. Obscured. Clark Kent isn't someone you'd really know, he's a byline. An authorial credit. When Lois starts to peel that back, is when things get wonky.
If Clark Kent has to interact with figures in authority, his scam needs to be rock solid.
I like Lois knowing and then getting together, but that happens down the road. In the films I'd prefer that to be dragged out as far as possible. In the comics they can be married.