content: Mint is based on Ubuntu, so they're pretty similar. The biggest difference is the default desktop environment - Ubuntu uses Unity, and Mint uses Cinnamon - but that can be changed on both of them. There's also a few differences in default software, and usually Mint runs just a little faster than Ubuntu. Personally, I like Ubuntu better, but there's a lot of people who would disagree, especially if they haven't tried Unity for a couple years. It was pretty bad for a while. If you're already using Ubuntu and you're happy with it, there's not much reason to switch.