Personally I prefer non-antialised MS Sans Serif, and turning off antialiasing is one of the first things I do (but they seem to make it harder with each new version to eradicate it completely) because it physically hurts my eyes and makes me feel dizzy after looking at "smoothed" text for too long. But I think the gradual loss of customisability is definitely something we can all agree against. (For another one, I don't think I've ever put the taskbar anywhere other than the bottom, but I definitely think it would be better if people were free to put it where they wanted.)