MAC vs PC for a developer?
makecheck: Mac, most definitely.For one, Mac OS X comes with a Python version installed.  It also comes with a whole toolbox of Unix utilities, including a number of text editors.  (There are many other 3rd party text editors for the Mac, too.  Though I stick with "vim" or Xcode myself, both of which are included.)You can't understate the value of being able to pop down to the Unix layer when needed.  There are lots of times where a simple "grep" or "cp" or "mv" is exactly what you need, and I love that this is just built in to the Mac.  If you aren't that familiar with Unix commands, I think it's knowledge well worth having; most of the basic ones are really not that hard to use.I have to use Windows at work, and I have to say I'm amazed with how little it comes with.  While it is possible to work productively on Windows, I have found this is only true after a large setup cost.  So if you don't mind downloading stuff for hours, you can eventually get the right tools.  Still, I have never found Windows tools to be as "integrated" as Unix utilities are; every Windows program wants its own scripting language, its own hackish way of doing things (in my experience, that is; YMMV).  Microsoft's command prompt is also pretty lousy; it really doesn't compare to a Unix shell, and the idea that you could only get that level of power by installing all of Cygwin, is a turn-off to me.