There are private schools, and there are universitys/colleges. take for instance from this list from imdb.com
California
Academy of Art College (San Francisco, CA)
American Film Institute Center for Advanced Film and Television Studies (Los Angeles, CA)
Art Center College of Design (Pasadena, CA)
Brooks Institute (Santa Barbara, CA)
CalArts School of Film and Video (Valencia, CA)
California State University, Long Beach Film & Electronic Arts (Long Beach, CA)
Chapman University School of Film and Television (Orange, CA)
Film Connection (Los Angeles, CA)
Los Angeles City College Department of Cinema and Television (Los Angeles, CA)
Los Angeles Film School (Hollywood, CA)
Loyola Marymount University School of Film and Television (Los Angeles, CA)
New York Film Academy, Universal Studios (Hollywood, CA)
San Diego State University School of Communication (San Diego, CA)
San Francisco School of Digital Filmmaking (San Francisco, CA)
San Francisco State University Cinema Department (San Francisco, CA)
Stanford University Graduate Program in Documentary Film & Video (Stanford, CA)
University of California, Los Angeles School of Film, Theater, and Television (Los Angeles, CA)
University of California, Los Angeles Extension's Entertainment Studies Department (Los Angeles, CA)
University of California, San Diego Department of Visual Arts (San Diego, CA)
University of Southern California School of Cinema Television (Los Angeles, CA)
Video Symphony (Burbank, CA)
that's a long list, and it's not the only one...
Some of them are Universitys/colleges, which means 2-3 years of school, and some are just film schools where sometimes it's just a 1 year course.
now maybe i just don't understand, and ther'e realy just the same thing...

At most, the difference is the price...or the length of time...
so to make things short, how do i know what's best, or better? is it worth it to pay more and go to one of the schools that specialize in film only? or going through a full time studying plan at a university?