OSX 10.6.8 Win 7 64bit Win XP (cause that comp refuses to die)
I started at win, then go through osx and ended up on ubuntu LOL. Never considered myself as a geek guy, so I never imagined using linux Anyway ubuntu is very similar to osx. Of course osx is better and more smooth, but the hardware prices are twice costly as normal. And the killer feature of ubuntu is “spaces” like on osx, but you still can have them in multiple columns and rows:http://www.techotopia.com/images/7/78/Ubuntu_11_unity_increased_workspaces.jpg
And thanks to choosing ubuntu I was able to buy a top gaming laptop with dual graphics, so if I rarely play, I can run on best details. And this all still for the half of the price of macbook
Windows 7 – I’ve been a devout Windows user my whole life.