1. 1. Chart types: Chart.js provides a broad range of chart types, including line, bar, radar, polar area, doughnut, and pie charts, among others. On the other hand, JSCharting offers an extensive collection of chart types, encompassing over one hundred chart variations, such as bubble, treemap, financial, candlestick, and heatmap charts, just to name a few. Therefore, JSCharting provides a much wider selection of chart types compared to Chart.js.

2. 2. Chart customization: Both Chart.js and JSCharting offer extensive customization options for charts. However, JSCharting provides a more advanced level of customization, allowing for the modification of various aspects, such as chart colors, labels, tooltips, axes, legends, and even chart animations. This level of customization surpasses the capabilities of Chart.js, providing greater flexibility in tailoring the charts to specific requirements.

3. 3. Interactivity and user interaction: JSCharting offers rich interactivity features, enabling user interaction with the charts through events, data filtering, and drilldowns. Additionally, JSCharting allows for the inclusion of interactive elements, such as sliders, buttons, and inputs, to manipulate chart data dynamically. While Chart.js also supports interactivity features, the level of interaction provided by JSCharting is more comprehensive and versatile.

4. 4. Data visualization capabilities: JSCharting stands out with its advanced data visualization capabilities. It offers specialized chart types and features designed specifically for data analysis, such as box plots, histograms, box whisters, polar histograms, and statistical overlays. These capabilities are not available or are limited in Chart.js, making JSCharting a more suitable choice for complex data visualization needs.

5. 5. Real-time and streaming charts: JSCharting provides built-in support for real-time and streaming data visualization, allowing for the dynamic updates of data in charts. This feature is crucial for applications that require real-time data monitoring and tracking. Chart.js, although not specifically designed for real-time data, can be adapted with additional plugins to achieve similar functionality, but it lacks the native streaming support provided by JSCharting.

6. 6. Documentation and support: Chart.js has comprehensive documentation and a large community of users, making it easier to find examples, tutorials, and support online. On the other hand, JSCharting also provides detailed documentation, tutorials, and examples but with the added benefit of direct support from the development team. JSCharting offers personalized assistance and troubleshooting, which can be crucial for complex implementations and specific requirements.

In summary, Chart.js offers a solid range of chart types and customization options, but JSCharting surpasses it with a wider variety of chart types, advanced customization, richer interactivity, specialized data visualization capabilities, built-in real-time chart support, and personalized support from the development team.