I don't believe there are any.
I won't pretend to remember to list them all, maybe I should, but you can't pretend that shutting down via mouse isn't more annoying than it was before. Move to the corner, wait a bit, click a cog thing. What the hell? Who does that make sense to? Maybe the start menu is old news but there was no delay when you clicked it. Also you can't log off from the same place that you shut down. Why exactly? Why not just put it there? Most people I know have to google how to log out of Server 2012.
I just think Windows is the best consumer level OS, which also happens to have the best software support.
Windows 8 is a confusing mess for consumers. I can buy apps from the store? Cool. Wait, why is it fullscreen only? Since when have simple applications like PDF readers been fullscreen only? Why is the default PDF reader out of the box full screen only? The whole
point of Windows was to take us away from full screen only applications. So I don't
need a start menu, but why does app searching have to take up the whole screen? The whole two screens if I have dual monitors? Do I need to give some more examples as to why end users find this shit confusing?
I was also pretty happy with Vista though, so yeah.
So was I. Vista's main problems were an overly aggressive UAC (which was easily turned off) and that early on it was bundled with too little RAM from OEMs (giving it a bad reputation for performance, since OEMs would configure the minimum RAM but leave aero turned on). Small fry compared to the little problems that come with every OS upgrade, and it was nice to finally have a proper 64bit OS. Vista 64 was great.
Address my specific problems if you like, but don't try to hand wave my complaints about Windows 8 as "everyone complains about every OS". I don't. Personally I only find Windows 8 a little bit annoying, but end users find it extremely annoying and are going to Macs in droves. I'd much prefer a healthy Windows marketshare because it's always been a good middle ground between usability and openness.