Re: Who should be the villain in the sequel for Man of Steel?
I don't think an Earth-based storyline is out of the question. I think Lex needs to be in it, and my preference would be to see Lex working to turn public opinion against Superman so that he could ultimately run a presidential campaign on an anti-Superman/anti-extraterrestrial platform. There are many paths to do this. Metallo. Intergang. Striking a deal with Darksied or Brainiac.
I think the way to top MOS isn't to make the villain larger or stronger than Zod, but the make the plot more intricate and exciting. The villain doesn't have to be alien for this. I'm not against alien, of course. I would love to see Brainiac or Darkseid, but I won't be disappointed is they decided to hold off on them for the time being. A good story can be told with just Lex and Metallo or Toyman or even Intergang.