Ranked in these QuestionsQuestion Ranking
Pro Great-looking demo
Pro Device agnostic
Since Materialize follows Google's guidelines for Material design, which in theory is device agnostic, Materialize itself is device agnostic too. It's designed to look good on every device.
Pro Large selection of components
CSS components: Badges, buttons, cards, collections, footer, forms, icons, navbar, pagination, preloader.
Mobile-specific: slide-out drawer menu, toasts.
Pro Mobile navigation
Pro Nice showcase of sites built with Materialize
While the default style is not bad at all, Materialize also gives developers the ability to customize it and fit their own style, while still keeping in line with the Material Design philosophy.
Along with the CSS files, designers can also download the SASS files which can be edited and compiled.
Pro 12-Column Grid System
Pro Included icon font
Pro Meteor.js integration by developers
Material design is very opinionated on how design elements should behave and look. The basics of which revolve around certain visual elements (physics, space, momentum and light) which are used to create specific UX elements.
This is very helpful because it creates a consistent feel without making every design look the same. This can be seen in Materialize too, where each element may be customized but still it keeps the consistent look of the material design.
Pro Cross-browser compatibility
jQuery UI, like jQuery has great cross-browser and backward compatibility with the most popular browsers on the market.
Pro Globalization support
jQuery UI has internationalization (globalization) support.
Con Not maintained anymore
Con Large / heavy
267 kilobytes, minified, for the CSS and JS.
No longer supported by their maintainers.
Con Slow development
jQuery UI development is rather slow and new features or components are not released frequently.