Well I use Windows daily as a dev at a MS Partnered company but you are still correct in that when I said OSX is turning into Win I was thinking of the XP/Vista era. I am not a huge fan of either 7 or 8 tbh, but that is acknowledged as a personal preference in much the same way as I sold a practical commuter car to buy something "i like driving more".
The problem with OSX now, as I see it, is that as Windows irons out the problems that made *nix users dislike it, OSX seems to be allowing those problems (both engineering and usability) to creep in.