Re: Who should be the villain in the sequel for Man of Steel?
I think you're absolutely right on the latter point, but you have to consider what opportunities Superman will have to do super-powered stuff. The problem with Lex as the sole antagonist is that the action sequences may fall into a rut of plane-catching and ship-hauling. Those are powerful motifs, but they may be getting tired.
Difficult, difficult, lemon-difficult.