I feel the opposite way about the IntelliJ/Eclipse (strongly prefer IntelliJ over Eclipse). I stopped using Eclipse at, I believe, Juno or Kepler (4.2/4.3) and switched to IntelliJ 13. I found that Eclipse very frequently just plain froze while doing an operation, was laggy, and crashed frequently. There was also very long startup times.

I haven't used Eclipse in a few versions, but when I made the switch I was extremely thankful that I did. What makes you prefer Eclipse? Or, rather, what makes you dislike IntelliJ?