This chart can be your weapon of choice when you need to visualise a complex comparison: multiple options, multiple dimensions, and subtle differentiations (beyond "yes" or "no"). You can position the balls anywhere in between the extremes. When using the slide for your specific situation, it might have to go through a number of iterations. Choose the order of the dimensions in such as way, that the lest complicated line pattern emerges.
Feel free to copy the design, or download the completed slide from the SlideMagic store.