Re: Next Batman Villain?
Riddler's a great character, and he demands a mind challenge, which is something we haven't seen Batman actually do in the movies even though Batman does it tons in the comics and even the cartoons. Plus there's a dozen great ways to go with the Riddler. I think he's big enough that you can only fit one other villain in there with him. Somebody physical like Killer Croc would be cool if they keep it Nolan-ish, but if they do any stylizing, Man-Bat would be my personal fave, goes well with mind games on Batman.
Hugo Strange and Clayface is a great combo, good call.