Creator X is just for smaller youtubers that don't meet the requirements for Fullscreen, I also believe if you're a gamer you get partnered with the Fullscreen Arcade, well something a long them lines. There isn't much of a difference but I think with Creator X your split will be pretty low compared to Fullscreen. And by the way most networks these days have a 100$ cap just make sure you read the contract before you sign it haha. RPM is an average network I haven't heard many good things about them. Just take your time when getting partnered with a network as there are hundreds of networks you could go with. Good Luck!