> Resharper
You've kind of hit the key here, Visual Studio alone is decent, but Resharper is really what makes the experience for me. I don't know a single .net developer who could live without it.
There's one here.
It stinks on our 1Mloc C# project to the point you have to disable it or it crashes VS every 5 minutes.
I have hopes that LightTable will, when finished and released as open source, become the answer for those seeking a modern extensible editor. I love emacs, but there are times when I feel that it's my hair shirt.
Regular text editors just feel so clunky next to the cohesiveness of VS/Resharper or Intellij.
At some point in time, Emacs is going to have get overhauled to join the 90s, much less the 21st century.
And I understand that CL is a special case with Emacs, but it's still clunky as hell compared to what could have been really awesome environments (think Smalltalk environments), but with lots of resources pumped into the development.