Post 1: Which Eclipse version to use?

In my journey from MS to Open Source the first thing to get to know was Eclipse, and IDE that is most used for development of java projects just like Visual Studio is most used when working on MS platform. 

Having worked with VS since back in 1995, when the IDE for Visual C++, Visual Basic and Web application development used to be different (MSVC, MSVB and Visual Interdev), to the current times when pretty much everything on MS world can be done using Visual Studio, I know that for the I...