Paper.js vs Highcharts

It is written in a language nearly identical to JavaScript, but adds helpful operator overloading to allow you to perform coordinate arithmetic.

An almost-unique feature: can test geometry if contains(), isInside() or intersects() one other object. Offers even hit-testing methods!

Objects in Paper make it easy to extend parent objects and run constructor functions without having to worry about JavaScript prototypal inheritance. Because of this it is easy to make compound drawing objects with their own instance variables and behaviors.

Example: each swimming tadpole follows its own behavior

These features make it easier to create objects that can act autonomously with complex behaviors. This makes Paper a good choice for particle effects and game development.

Elements all have the option of being created with a hash of properties which promotes clean, concise, and contextually local coding practice.

Paper uses a frame based approach to rendering the canvas. This makes it conceptually easier to create objects with animations and behaviors that interact and perform with other objects.

Along with Paper's approach to creating and managing objects this makes Paper especially good for creating applications with complex behaviors with many elements doing different actions at once, and makes it a good choice for making games.

Highcharts provides 20 different types of charts to choose from, and they make it simple to combine chart types.

Very handy with examples and explanations.

Highcharts supports all modern browsers (including IE6 and up), iOS and Android.

Highcharts has a large and supportive community, resulting in a fast response from both stack overflow and the Highcharts forum.

The site has a selection of good examples that will help you get started quickly.

Important for trend correlation, eg. comparing number of clicks to sale amounts. Not same scales / units.

Compatable with .NET framework 4+, can develop graphs from server side for ASP .NETand ASP .NET MVC applications.