I've really come to like a feature I'd come across in notepad++ that let's you associate a font with different syntax elements in a language syntax file. I would say it could be jarring if you used fonts that were TOO different from one another, or whose sizes were way different, but slight adjustments to the font type adds a a subtle differentiating factor that adds to some peoples ability to distinguish between text that color alone doesn't quite provide...

There's no way to do this in UE... right??? Anyone else see value there?

I came here looking for a way to do exactly this same thing. I recently tried notepad++ and really like the way it used a different font for comments vs. code. The capability to use different fonts and/or font-weight for different file-types and syntax elements within those files would be a very nice option.

You can't use different fonts, but you can use different styles (bold, italic, and underline).