When comparing JSX vs Amber, the Slant community recommends Amber for most people. In the question“What are the best solutions to "The JavaScript Problem"?” Amber is ranked 27th while JSX is ranked 36th. The most important reason people chose Amber is:
Amber includes an integrated development environment with a class browser, workspace, transcript, object inspector and debugger.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy debugging with source maps
Pro Compiler optimization
For better performance.
Pro Catches bugs at compile-time because of its static type system
Pro Includes an IDE
Amber includes an integrated development environment with a class browser, workspace, transcript, object inspector and debugger.
Pro Smalltalk is a simple, elegant, and powerful language
Pro One-to-one JS equivalent
Amber is written in itself, including the parser and compiler, and compiles into efficient JavaScript, mapping one-to-one with the JS equivalent.
Cons
Con Very few learning resources
There are very little learning resources for Amber outside the official documentation. Which may not be enough for beginners, especially people that don't have much experience in programming.