[nwhitehead]

I prefer Palatino when typesetting mathematics using latex. It looks nicer than Computer Modern and is super easy to use. Nowadays I use xelatex and actual fonts instead of staying stuck in the tex font ghetto.

http://www.tug.dk/FontCatalogue/palatino/

[jasomill]

Similarly, I've had nice results combining Zapf Renaissance Antiqua text (via XeTeX fontspec) with Palatino maths and Optima headings.