Indeed, rendering makes a huge difference between OS'es. Personally, I find the Mac (and iOS, those are equal I think) rendering quite nice, the Windows renderi

Indeed, rendering makes a huge difference between OS'es. Personally, I find the Mac (and iOS, those are equal I think) rendering quite nice, the Windows rendering reasonable, and the Linux rendering (at least in gnome, don't know about other wm's?) just ugly, but that's just my opinion. :P