IntelliJ做了而Eclipse没有做的两件事对我来说非常有价值:

方法分隔符:方法之间那些模糊的灰色线条使代码更具可读性

文本抗锯齿:使代码在IDE中看起来很漂亮

有很多事情是idea用更简单的方法解决的，或者没有等价的方法:

Autocomplete actions: Doing ctrl+shift+a you can call any idea action from the keyboard without remembering its key combination... Think about gnome-do or launchy in windows, and you've got the idea! Also, this feature supports CamelCasing abbreviations ;) Shelf: Lets you keep easily some pieces of code apart, and then review them through the diff viewer. Local history: It's far better managed, and simpler. SVN annotations and history: simpler to inspect, and also you can easily see the history only for such a part of a whole source file. Autocomplete everywhere, such as the evaluate expression and breakpoint condition windows. Maven integration... much, much simpler, and well integrated. Refactors much closer to the hand, such as loops insertion, wrapping/casting, renaming, and add variables. Find much powerful and well organized. Even in big projects Much stable to work with several branches of a big project at the same time (as a former bugfixer of 1.5Gb by branch sources, and the need to working in them simultaneously, idea shown its rock-solid capabilities) Cleaner and simpler interface... And, simpler to use only with the keyboard, letting apart the need of using the mouse for lots of simple taks, saving you time and giving you more focus on the code... where it matters!

现在，作为开源的…Idea的用户群将呈指数级增长。

Well, for me it's a thousand tiny things. Some of the macros, the GUI layout in general in Eclipse I find awful. I can't open multiple projects in different windows in Eclipse. I can open multiple projects, but then it's view based system swaps a bunch of things around on me when I switch files. IntelliJ's code inspections seem better. Its popup helpers to fix common issues is nice. Lots of simple usability things like the side bar where I can hover over a hot spot and it'll tell me every implementing subclass of a method or the method I'm implementing and from where.

每当我不得不使用Eclipse时，或者看到别人使用Eclipse时，他们似乎可以做我在IntelliJ中可以做的大部分事情，但它花费的时间更长，而且更笨重。

我不记得在Eclipse中是否可以实现字/行/方法/类换行

在Intellij Idea中，您使用Ctrl+W

在我看来，其中一个优点是依赖结构矩阵: http://www.jetbrains.com/idea/features/dependency_analysis.html#link0

在Lattix的网站上(一个独立的产品)有一个关于DSM使用和好处的很好的介绍: http://www.lattix.com/files/dl/slides/s.php?directory=4tour

我在IntelliJ中一直使用的东西是在我输入时重构。我用两种ide重写了打印输出的类(最初是在eclipse中编写的)，用IntelliJ编写相同的类比用eclipse少了大约40%的按键/鼠标点击。

除非Eclipse对不完整的代码段支持同样多的重构，否则我不会使用它。

以下是IntelliJ 8.0/8.1的特性列表[http://www.jetbrains.com/idea/features/index.html]