If you have little or no experience working with Linux, you might do well to ask yourself (and answer) some or all of the following questions. Your responses will prove valuable in helping you to decide.
1. Are you a newbie to Linux?
2. Do you need a totally free distro or are you willing to pay a fee (not all distros are free of charge)?
3. Are your computing needs business or personal or both?
4. Would you prefer a distro that's available in a language other than English?
5. How do you connect to the Internet?
6. Do you tend to opt for very economically priced hardware? Cheap printers can be a problem.
7. How much help is available when you have questions? Don't forget that there are community forums for just about every distribution out there. You can visit them as a guest to see how supportive and knowledgeable the members are.
8. What machine will you use and is it legacy hardware?
9. Are you comfortable working on a command line or do you always have to have a Graphical User Interface (GUI)?
10. Do you have to continue using programs made to be run under Windows?