> just because software is poorly optimized does not mean we should subject ourselves it.
Sure, I'd use an IDE that does what I need but does it faster than VS, in a heartbeat. Obviously. Also, a lot is happening and very few are working professionally in several environments, so compare what they do every day, with what they do occasionally or maybe a long time ago. When I say I think Eclipse is a dog, that probably because the last Eclipse I used was Ganymede (2008) on java 1.5, hitting "run" and getting coffee before my jboss monster had started. I suppose a lot has happened there too.
Most IDE's have much better navigation and autocomplete than VS does out of the box. When I say "VS" I really mean "VS+Resharper" as VS more or less useless without ReSharper. With ReSharper however, it's definitely one of the best IDE's there is, and almost surely the best one for C#, at least until this comes out.