When comparing Materialize vs Stylify, the Slant community recommends Materialize for most people. In the question“What is the best CSS framework?” Materialize is ranked 13th while Stylify is ranked 27th.
Ranked in these QuestionsQuestion Ranking
Pros

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.
JavaScript components: Collapsible, Dialogs, Dropdown, Media, Modals, Parallax, Pushpin, ScrollFire, Scrollspy, SideNav, Tabs, Transitions, Waves.
Mobile-specific: slide-out drawer menu, toasts.

Pro Responsive

Pro Mobile navigation

Pro Nice showcase of sites built with Materialize
Pro Customizable
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
Pro Opinionated
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 Intuitive selectors
It uses native CSS property:value selectors like color:blue or font-weight:bold as a selector.
Pro Selectors minification
It shrinks long selectors such as font-weight:bold to _ab12.
Pro Small CSS chunks
- CSS can be generated for each file, page, layout or component separately.
- Selector is generated only once and reused when possible.
Pro On demand generated CSS
It can generate CSS on demand for example inside the express request.
Pro No dependencies required
It doesn't require any post or pre processor.
Pro Seamless integration
It can be easily integrated into the Nuxt.js, Next.js. It works well along with Webpack, Rollup and Vite.js. The CSS can be generated easily for Symfony, Nette or Laravel.
Pro Dynamic screens
Screens can be combined using logical operangs like sm&&tolg, xl||landscape and lg&&dark. The value for media queries can be dynamic like minw640px.
Cons

Con Refuses to use the flexbox model
Even though Materialize states that it only supports IE10+, which supports flexbox quite well, with prefixes, Materialize has refused to use Flexbox.
Con Not maintained anymore

Con Large / heavy
267 kilobytes, minified, for the CSS and JS.
Con Deprecated
No longer supported by their maintainers.
