My main font is Calibri (body) and the alternate (for special cases and when Calibri isn't appropriate) I really enjoy the look of Times New Roman. Both of which are pretty default when it comes to Microsoft Word at least.
I think a good readable font is just as important to the writer as it is to the reader. It definitely helps in the editing process.
School alternates between Cambria (default) and Helvetica. Writing is near-exclusively Book Antiqua, because I found it less condensed than Times New Roman (which is too formal for me).
But if I'm getting marks on presentation for the report all bets are off as I will try out a dozen fonts to get it to look right. If I'm doing creative work... don't ask. Just don't.
A writer is a world trapped in a person— Victor Hugo
Ink is blood. Paper is bandages. The wounded press books to their heart to know they're not alone.
There are two kinds of folks who sit around thinking about how to kill people: psychopaths and mystery writers. I'm the kind that pays better. ~Rick Castle