如果要构建Java EE应用程序，***使用 适用于Java EE的Eclipse IDE 。它有编辑从HTML到JSP / JSF，Javascript。它非常丰富的webapps开发，并提供插件和工具来轻松开发Java EE应用程序（所有捆绑）。

Eclipse Classic 基本上是没有Java EE部分的全功能Eclipse。

What is the difference between Eclipse for Java (EE) Developers and Eclipse Classic?

Both are marked as version 3.6.

Which one should I use?

If you want to build Java EE applications, it's best to use Eclipse IDE for Java EE. It has editors from HTML to JSP/JSF, Javascript. It's rich for webapps development, and provide plugins and tools to develop Java EE applications easily (all bundled).

Eclipse Classic is basically the full featured Eclipse without the Java EE part.