Thats always a tough question, it depends why you ask it.Generally its because people dont want to learn the differences between the OSs and want everything point and click. First let me say this will leave you disapointed, switching from Windows to Linux is like switching from checkers to chess, it might be a bit of a learning curve but youll enjoy the final experience a whole lot more.I would choose ubuntu, its set up is very easy and most things (eg wine) can be installed directly from the package manager with no compiling knowledge needed.Other distros have tried to mimic windows (Lindows for one) but it never seems to work, there are things like file permissions that windows users have trouble with.Ubuntu is by far the most supported as far as getting help, if you have an issue you type a seach in google with your problem and 'ubuntu' in the title chances are you'll get your answer.Good luck!-JordanP.S. Running windows .exe files even in an emulator in linux will still run badly (by linux standards) you may only be as stable as your windows pc running the same files. It is HIGHLY recommended to find a linux alternative to the program you are running, youd be amazed how many windows programs are cloned in *nix.