Years ago I learned photography. When I did so, I also learned that people constantly bought new and more expensive cameras in the belief that the camera took the photograph. The manufacturers had the marketplace completely bamboozled.

The argument shouldn't be which slide program to use, but rather to understand the purpose of the individual slides. None of the programs listed will transform poor presenters into good ones, and most of the people who take the stage only make their own presentations even worse with their poorly made slides.

For the most part, slide presentations exist for the speaker to use as a devise to hide from his/her audience or simply to confuse the audience.