#12. Fewer surprise restarts
How about none? Please? The only surprise restart should be a STOP error, and at that point, it's a hardware/driver issue. All other restarts should be optional, like in sane operating systems.
I'm pretty sick of Windows being judged poorly on this. I used a macbook for 5 years and it required just as many "surprise restarts" as windows. Hell it had to restart one day when it updated iTunes. And I've used ubuntu on my laptop for the past 2 years and while there are a lot less, there are still reboots for software updates. I never bother to check what they are, but they definitely happen at least once a month.
In terms of updates in general, ubuntu gets updates just about every day, which is much more annoying than OSX and Windows combined. Sure you don't have to accept them, and you can tweak the frequency but I like to judge things on their defaults, as I am sure there are plenty of things people hate about Windows that can be tweaked in the registry or something the same way you can tweak linux with configs in /etc or whatever.
And then there's the security side of it. People crack it at windows for asking to confirm/allow every time you try and do some admin task. Well, OSX/Linux ask for the root password every single time. Hell OSX once asked me for my password 3 times during the same software update. I know for sure I'd rather just click ALLOW instead of typing my password.