When comparing Paths.js vs Highcharts, the Slant community recommends Highcharts for most people. In the question“What are the best JavaScript drawing libraries?” Highcharts is ranked 18th while Paths.js is ranked 21st. The most important reason people chose Highcharts is:
Highcharts provides 20 different types of [charts](http://www.highcharts.com/docs/chart-and-series-types/chart-types) to choose from, and they make it simple to [combine](http://www.highcharts.com/docs/chart-and-series-types/combining-chart-types) chart types.
Ranked in these QuestionsQuestion Ranking
Pros

Pro Just helps building graphs, complements template engines or data-binding libraries
Can be used together with a template engine such as Mustache or Handlebars to display SVG graphics or instead of a static template engine, you can use a data binding or MVC/MV* library, such as Ractive.js, Angular, Mithril or Facebook React.

Pro 3 APIs for the price of one
3 APIs of increasing abstraction:
- Low-level (svg paths)
- Basic shapes (Polygon, Rectangle, Bezier, Sector, Connector etc..)
- Basic graphs (Pie, bar, stock, radar, tree, waterfall, sankey etc...)
There is no magic, you can have as much control as you want on how you define your graphs, source code very readable.

Pro Lightweight
18kb minified.
Pro Good documentation
Very handy with examples and explanations.
Pro Excellent browser support
Highcharts supports all modern browsers (including IE6 and up), iOS and Android.
Pro Large and active community
Highcharts has a large and supportive community, resulting in a fast response from both stack overflow and the Highcharts forum.
Pro Lots of good examples
The site has a selection of good examples that will help you get started quickly.
Pro Supports multiple Y axes
Important for trend correlation, eg. comparing number of clicks to sale amounts. Not same scales / units.
Pro Library to support Microsoft .NET
Compatable with .NET framework 4+, can develop graphs from server side for ASP .NETand ASP .NET MVC applications.
Cons
Con Commercial
Highcharts is not free for commercial projects, with a starting price of US$590 for Single Developer + Maintenance & Support
Con The examples are not that great
For instance, example's JsFiddle may get stalled when loading.
