Having use Webstorm for the last half year, I still much prefer Eclipse. It's generally faster and more stable (unless you make it crap with stupid plugins). I find IntelliJ-Based products much over-hyped. I have the strong suspicion it's for people who never liked IDE's anyway.
Also, Eclipse doesn't hang itself twice a day. I'm sorry that the guys at Google couldn't be arsed to write a decent Android IDE based on Eclipse, probably the people who could have helped them do that didn't pass their stupid entrance exam.