Which credit reporting agency is best for the credit report?

I know that i can get my free credit report once a year, but there are like 3 reporting agencies to chose from. Which of those agencies is most accurate, and gives out the most info? I want one, to show all the negatives thing i might have in order for me to fix them, if there are any.

if you want to get your credit report for free, check out this site

http://credit-report-online-usa.com/

Here you can check your 3-in-1 Report from all three credit reporting agencies and your credit score.

Hope this help,