When comparing Google Charts vs C3.js, the Slant community recommends C3.js for most people. In the question“What are the best JavaScript charting libraries? ” C3.js is ranked 6th while Google Charts is ranked 14th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to use
Google Charts has a large selection of chart types to get started with and have up in running in very little time. It uses sensible defaults, but has flexible options to allow for customization when needed. Better than most other free to use Chart APIs and has great documentation provided by Google.
Pro Supports multiple Y axes
Important for trend correlation, eg. comparing number of clicks to sale amounts. Not same scales / units.
Pro Declarative interface
Pro Legend out of the box
Pro Easy rotation (swap X and Y), and inverting
Pro Easy to configure and supports all basic charts
With legends and tooltips, gridlines, axis and tick label customization, etc.
Pro Good set of examples
Pro Unified data model which allows easily switch between chart types
Cons
Con Cannot self-host
Google does not allow you to save or host the code yourself.