I'm not arguing with you about what is the "best" development toolchain. FWIW I'm an Emacs user myself.
But my point stands: if you do want the fully-integrated IDE experience, VS is state-of-the-art, there's nothing like it on any other platform. That is why I don't say "better" or "worse" I say "not comparable".
Incidentally, you should check out a guy named Richard P Gabriel. His company made Energize, an Emacs-based IDE (in fact they were responsible for the Emacs/Xemacs schism). You may judge the interest in full IDEs in the Unix world from the fact that it no longer exists...
In no other creative or engineering profession is there this expectation that the most advanced tools are shrink wrapped together. Who gives a shit if you can buy paint together with your brushes? Just buy the best damn paint and brushes you can find, regardless of who sells them.