The WWOS coverup is my favourite too. I agree that WIN are putting a bit more effort into their coverups these days, although they probably should do what I've done with GEM and GO! (although GO's one is a bit too big) instead of those pointless pink coverups.
Other then the WWOS, I think I prefer the current cover-ups to be honest (espically they are now putting thought and effort into them).
Fair point, although would the average viewer on the street know or care that the WIN coverup is a coverup? Probably not.
I think blurring the 9 logo would look pretty obvious to the everyday viewer that they are trying to hide something.