I guess it's subjective, but in windows 7 the aesthetics are weird. The taskbar looks funny, a lot of the UI dialogs were obviously not designed with that styli

I guess it's subjective, but in windows 7 the aesthetics are weird. The taskbar looks funny, a lot of the UI dialogs were obviously not designed with that styling in mind, and so on. In windows 8 they killed the theme completely. (Although once you get rid of metro, I actually like the windows 8 theme quite a bit).