While Eclipse and IntelliJ are almost identical in terms of their feature sets, there is one key difference which greatly impacts the functionality and user experience of both products.
Auto Save is that feature. IntelliJ has it, Eclipse doesn’t.
'Clearly Intellij is better', you might say. 'Wish eclipse had it too', you might say. But things are more complicated than that.
Read full article here: http://movingfulcrum.tumblr.com/post/58820190063/eclipse-vs-intellij-dilemma-to-auto-save-or-not