[jacques_chester]

I've never seen IntelliJ or Eclipse fail to work out how to get to the definition I'm looking for.

For Ruby I see RubyMine doing what amounts to a fulltext search. It's next to useless.

For startup time, see my notes on the JVM and the link to Dave Syer's notes.

There's also the devtools starter to ease the JVM reload pain. Which to me is by far the biggest suckiness of the thing.