I was surprised to see Bjarne using a standard Windows XP machine. Not sure if he used Visual Studio or what but he didn't do anything special as far as I could tell.
Then of course you have RMS who still lives in the 1970s :)
Edit: Like I said in my previous post I quite like using whatever the default is. A few changes here and there but on the whole it is much easier to move around if you just learn to work with whatever it comes with.