Which is better inside cheerleading magazine or American cheerleading magazine?

It depends on what you want. Here's a description of both:

American Cheerleader: More mainstream, often has articles about fashion and celebrities. More focused on high school and college Cheerleading, school spirit, and camp. I personally am not the hugest fan of AC because I am an Allstar cheerleader

IC: More hard core cheer. I feel like it has a greater variety of articles covering all aspects of cheerleading, not just school. Also does a special issue for Worlds