Win8 introduced a lot of regressions that hamper playability though, it's beyond just the 'emperor's new clothes' and has little about 'wow you guys should die for not accepting change'.
Like for example, Gamemaker games crashing if they play more than 4 samples at once. The games themselves that are affected are unlikely to be fixed.
I used to think Windows 7 sucked a ton because it lowered quality of video playback, but it turned out to be default 'denoise' settings for the drivers of my new video card. I also thought it sucked because of the tablet interface actions conflicting with drawing tablet latency, which can be resolved through a registry hack. This is probably even more obfuscated in Windows 8 given the touch interface nature. Oh let's not forget the whole lot of problems SDL has for not getting along with some of Win7's new devices, but that's just the fault of SDL, something hard for them to accept, denials with that submit-a-patch-or-you're-forever-wrong attitude.
Right now my only grievance with Windows 7 that's definitely Windows 7 is the automatic gain stuff I can't seem to turn off.