The application lets you choose the sample text and size in which the fonts will be displayed. You can also show the fonts in bold or italic if you want.
Another interesting feature is the option to enlarge the application window to whatever size best fits the fonts you want to compare. This way you can even compare 72-pixel fonts.
Moo0 FontViewer is a very basic application, without frills or unnecessary features that add little to the application's main function. It's a simple font viewer. No more and no less.