As an FIC provider, I teach the students to use all the possible media. I think that Powerpoint works fine for certain of the long briefings and lectures, but it is very difficult to make it work for a pre-flight briefing. Writing on the whiteboard or a piece of paper nearly always work better. We also have a full set of OHPs that can be used as required for briefings or lectures. I encourage student instructors to make some of their own OHPs too so that they can illustrate exactly the points they want to make.
If your course provider does not have all the equipment to try out, then maybe it is worth thinking again about where you do the course. Incidentally the examiner i use the most really loves Powerpoint for lectures.
Hope this helps.