Everyone has different opinions on this issue. I have an extensive history with both and have used windows 8 since then Dev preview. Windows 8 is my recommendation. It runs smoother and boots much faster. Windows 8.1, which is being released very soon(within a month) fixes many peoples problems(lack of start button, boot to desktop). That being said, one you're on the desktop, navigation is almost exactly the same as Win 7. Plus buying the latest OS is inherently good. I use windows 8 on both by desktop and a quite old(pre windows 8) tablet and it runs great on both. Obviously my opinion is not the same as everyone's and its more of a personal choice, but those are my reasons for going windows 8. Hope this helps!