“iCarly” and “Victorious” Movie?

The creative mind behind iCarly and Victorious, Dan Schneider, recently tweeted that he’s working on a crossover movie script.  He wrote:

Writing the script for the iCarly-Victorious HUGE crossover SPECIAL has been like a month-long marathon. WHEW! I’ll finish it TODAY! :)

Victoria Justice, the star of Victorious, has appeared on iCarly before.  She played Shelby Marx in the special episode “iFight Shelby Marx”.  I’ve heard that the crossover movie is going to be featuring Miranda Cosgrove and Victoria Justice as their signature characters of Carly and Tori, who hate each other at first but then join forces against someone they hate even more.  Hmmm, could it be Nevel?  Which show is better, iCarly or Victorious?