They should be Web Comics
These are Teams / Heroes / Bad Guys Who I think would make good Web Comics.
Some of them would make good Comic Books But I do not know if they Have that many fans who would buy the book. But a web comic is most of the times free and has ads on the web page to made money with. It can also be used to get more People/ Fans to know about the Teams / Heroes / Bad Guys. Building up there Fan base and giving them more exposure. Then at some point a Trade or Digest comic book will be put out.
