Johnny Depp as the Riddler? http://buzz.yahoo.com/buzzlog/91673 "The Dark Knight" is still on the tip of everyone's tongue. But now, instead of folks breathlessly asking each other if they've seen it, talk has turned to speculation over Batman's next foe. Who's it gonna be? iVillage is reporting that the Caped Crusader may take on the Riddler in "Batman 3." According to the rumor mill, Johnny Depp might sign on to play the nefarious super-criminal. But caveat emptor—this could be just as false as the one about Crispin Glover playing the Joker. Slashfilm notes that there are additional possibilities floating around. For instance, Phillip Seymour Hoffman may play the Penguin or Angelina Jolie could don Catwoman's skin-tight suit. Truth or fiction, fanboys around the world must be having a heart attack at the mere possibility. Still, the "official" rumor mill is just one of the ways superfans are checking in on the next Batman flick. Many seek the scoop themselves. We've noticed impressive searches on "batman 3 rumors," "dark knight sequel casting rumors," and "batman's next villain." That last query is very telling. People clearly want to know the answer, but we doubt even the filmmakers have decided. To that end, may we offer the studio execs this humble piece of Search-informed advice: Go with Catwoman. She's far-and-away the most popular baddie and there are already a slew of searches on possible cast members including Jessica Biel, Amy Adams, and, wait for it, Maggie Gyllenhaal. Do fans think Rachel Dawes, Bruce Wayne's one-and-only, was really the Catwoman all along?" Donno how I feel about that.