> http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html

The position in the tiobe list may seem nice, but it is not really important.
What is important is how YOUR customers feel about YOUR work.

IF that is first class (in terms of speed to deliver, less errors etc) than they will hardly ever question your choice of dev environment.
No need to mention what you use.

Boudewijn Lutgerink
It is hard to be humble if you are owned by Border Collies.