Intellij IDEA has an Android plugin, which is so good that Google adopted that as Android Studio, their officially supported Android development environment.
Note that Android Studio isn't fully complete or comparable to Eclipse and Eclipse's ADT plugin yet, but it's quickly and steadily improving, thanks to Google.
I have tried several times to shift to android studio for development but everytime I have to come back to eclipse. Whatever I do, it just doesn't work, it always messes up something and code doesn't work (which works perfectly fine on Eclipse). What good an IDE is, if I can't compile a simple project on it.
When I first started looking at Android development, Eclipse's plugin system was so buggy it put me off Android development for a year or so.
Eclipse has gotten a little better than how it used to be. I initially used it when doing Android programming. I eventually weened myself off it. The main reason was it was just too slow. Another reason is it has dozens if not hundreds of shortcuts, which I always seemed to be inadvertently tripping over. I would go from programming to undoing whatever change had just been inadvertently made, which sometimes was not easy. There are shortcut disable features, but then you face the array of option menus to deal with that.
It was bad enough that I now just use ant, emacs, adb and the like to do everything. I have not launched Eclipse for months. The last thing left was getting the IDE to automatically stick in imports of packages used in the code, but some tweaking of emacs and JDEE have enough of that functionality so that my one remaining reason to use Eclipse is gone.
If you plan to use the best-of-breed Android testing tools (namely Robolectric), Android Studio is not ready for serious use. Eclipse is not great, but at least everything works. I am optimist about the future of Android Studio (and the switch to Gradle), but if I were starting a new Android project today, I would still stick with Eclipse - you will avoid a lot of headaches and hacky workarounds.
