Like Favorite Run, Map My Run also uses Google maps. You don't have to register to use the site unless you want to save the route. It also marks off each mile and has options for you to mark stops along the way.
A screenshot is below. Interestingly, the site will prompt you when you have navigated away from the page so that you can reload the route on which you were working.
Although snazzy-looking, I think that this site is a bit more clunky than the other one, but it looks as though it has more features and probably has a larger user base. This means that you can find more saved routes here.