So, I use Ubuntu. Comparatively, the boot time with Ubuntu is quicker than Window 7. Ubuntu is faster on both old and new hardware whereas Windows 7 is faster than Vista on old hardware.
I am currently using Windows 7 on my machine. And will try Windows 8 on a virtual machine once I finish downloading the ISO file.
I am using windows 7 because many new features and provide facilities as well as provide sophisticated impression.
Windows 7 Ultimate 64bit with OCZ SSD! Windows starts up under 30sec! I actually like my PC more than Apple.
I use Windows 7 and plan on switching to Windows 8 as soon as it launches in MSDN (not as a consumer preview)
... wwaahhh,, I liked the operating system (two cases) .. windows 7 has a very fascinating (cool) but many are programs that can not be run on the windows .. windows xp if I like it (although sometimes get bored with the look of the windows) .. hehehe ..
at present i am using Windows 7 Ultimate on my laptop and windows xp professional on my desktop computer.
I am windows 7 ultimate version and i simply love it just because it really full of the features and support all type of application and the window 7 compatibility is one key factor it provide wonderful compatibility with all the driver of windows vista and other one....