As a developer using Visual Studio in my day job for the past six years, I simply cannot get a hold of Eclipse. I have tried repeatedly, and failed because it is so very clunky, slow, and unintuitive. Have recently been playing with IntelliJ, and think I will stick with this for the time being.

However, of course, Visual Studio with Resharper has just spoilt me rotten, can't expect that environment from every IDE.