When comparing Material Design Icons by Google vs IcoMoon, the Slant community recommends Material Design Icons by Google for most people. In the question“What are the best icon web fonts?” Material Design Icons by Google is ranked 2nd while IcoMoon is ranked 4th.
Ranked in these QuestionsQuestion Ranking
Pro Designed under Material Design guidelines
Pro Open source
The icons are open source and free to use.
Pro Hosted by Google Web Fonts
As with any font hosted by Google Web Fonts, it's simple to use. Self-hosting is available, or you can include a single line of HTML.
Pro Font CDN
Hosting for your custom-built font icons using amazons network. Lets you really quickly incorporate your custom fonts from the webapp.
Pro Icon packs
The free icon pack comes with 450 icons handcrafted on a 16x16 grid. Pay more to get more icons, photoshop shapes and dual tone icons.
WebApp that lets you build your own custom font icons. You can browse over 1800 icons, import your own vectors and generate sprites, png and svg images.
Con Some icons look ugly
Con Small set of icons
This font contains rather small set of icons that are targeted to be used in context of mobile device.