I love presentations... well, good presentations. I hate bad ones.
I love creating presentations. I love delivering presentations. I super-love Keynote from Apple for building presentations. It's a sweet-ass presentation software that's wicked cool.
But the hardest part for me is always the first step. Picking a font.
For me there is not perfect font for all occasions. There are however very few truly good presentation fonts. The best ones must have crisp lines, be easily read from far distances, and have very clean and clear bold and italics.
Then there is the background style. I'm a minimalist so I prefer solid backgrounds. I'm not into randomizing my background colours but rather using colour to identify theme or subject or sub-section. Alternately, I'll sometimes use one solid bg colour to identify markers or new chapters with the content bg colours remaining constant.
And once I get past the font and the colours, the rest will write itself, give or take a few weeks.