Mint develops their own desktop called Cinnamon which is like a cross between Gnome2 and windows 7 UIs. Its looks a bit bland, but some people prefer that.

Zorin uses Gnome3, but is heavily customized to give people a choice between windows 7, windows 10 or MacOS type experiences. The UI does look a lot more modern than mint in the looks department. They also have a commercial support option.

Both have a pretty good suite of software for customization and management.

Personally I'm loving Bazzite, which is Fedora based with a lot of customizations for gaming and modern hardware. It's also immutable, which makes it difficult to break.