Both look pretty well maintained to me. Just like any other language (including Java), there are tools which are more or less active depending where users are c

Both look pretty well maintained to me. Just like any other language (including Java), there are tools which are more or less active depending where users are concentrated. Most JVM developers I know prefer the IntelliJ Platform, so it's not surprising to me that's where most of the development effort is concentrated. Still, developers have their choice.