ExtJS and Webix alternatives

ExtJS and Webix have been my prefered ways of building apps. Hoever, I have found some alternatives:

• http://w2ui.com/web/get-started - with Metro Blue theme from jeasyui would be fantastic.
• http://www.jeasyui.com/

And more here:

• http://www.sitepoint.com/top-5-jquery-ui-alternatives/

or here:

• https://www.google.ro/search?q=javascript+rich+ui+framework&ie=utf-8&oe=utf-8&gws_rd=cr&ei=B0FCVaTqFIXiUdH_gbAM