First of all I should probably say that I'm quite new in the .Net world, and that many of my issues with VS could probably be alleviated. I just don't know how.

Mostly I think it's just about preference. I like my editor lean [insert joke about emacs being bloated here], visually non-distracting and customizable. I also try to avoid using my mouse. Emacs is all of these things for me, VS is not.