Learning from the master, Steve Jobs…

In one word : SIMPLICITY

Very few words.

Simple facts.

Big graphics with minimal text.

Smaller letters to clarify the data.

The speaker gives the details, not the graphic.

Few colors.

One more thing: If you provide too much information on your presentation people will get distracted trying to read or understand your content. They will lose interest in you and whatever you're saying.

As a speaker you should try to be the focus of your audience. The mission of your power point should be to support your statements not steal the center of attention.