in reply to
My preference on serifs:
Serif's Up! What? Oh, okay, I'll put away my board. Back to work in my serif's cube.
Depends on the weight of the font, too. My company mandates the use of an abominable sans-serif 44-pt font called Arial Black for all presentations, and it's all squished together into unreadability.
Personally, for presentation and docs, I like to use a wide serif font called (on M$) Bookman Old Style, with a few tenths of a point more width between characters. Even better, Railroad Roman. Of course, I grew up loving trains, so that's a no-brainer.
For code, however, I want a monospaced sans-serif font. I like ScITE as an editor because I can chose from a wide variety of fonts. I agree there's a definite issue with character confusion; haven't found a solution for that.
"There's more than one level to any answer."