About a month ago I found this wonderful font for developers on GitHub called Fira Code.
It is a mono spaced font, which is a must of course, but has one huge trick up it's sleeve..... Ligatures.
Ligatures are graphical symbols that are used to replace certain combinations of characters with a much nicer graphical representation of them, you can see the effect looking at the image. The Fira Mono samples are the version without ligatures and Fira Code with.
To enable in VS go to Tools->Options->Fonts and Colors and then for text editor select the Fira Code font style you like, apply the change then then restart VS.
Check the github page for list of supported editors