Yep, that would be my immediate if not the only topic of choice which comes for a presentation. You can check out all my posts here on Batman. Clearly that character has had a big impact (in the positive sense) in my life. Not only a big source of entertainment but everyone has something to learn. My presentation would range from the origin of the character in comic books and further in popular media throughout the years being the most iconic figure in culture, how this has had an effect on my life personally and further on everybody else.
On this, have a look at the video below on an upcoming documentary based on how much the caped crusader has meant to fans.