Format for Corporate presentation


For a branding project, I'm designing the corporate presentation template.
I want to know which format is better for online distribution > PDF or PPT?
points to be considered :
1. The type rendering methods of microsoft PPT & Adobe PDF. I found that in PPT especially at smaller sizes the typefacec is not rendered correctly. ( i'm using FF DIN / sapient & Amplitude)
2. The document creator ( from my clients marketing dept -a non designer) has to use powerpoint to create the presentation & then has to convert it into PDF ( since PPT dosen't embedd fonts)

Pls help