See this is what always draws me to reply in Nani threads, I really dont remember a world class unstoppable Nani, and I have pretty much extensively followed all the PL football teams over the past 4 or 5 years that's why I think fans go OTT here.By world class unstoppable you mean like the way the world class players like Ronaldo, Messi, Rooney a few years back, Drogba, Vidic, VDS, Iniesta, Ribery,RVP carried their teams at times and dragged them through games all season, scoring tons of goals or saving/securing well over double figures of points.
I remember a very good Nani, putting in a great performance vs Arsenal and against us once. I remember him scoring a stunner vs us and that goal vs Arsenal and Spurs, I remember him having a great season in 10/11, but I just do not ever remember seeing the Nani that some wax lyrical about here, unless you dilute the term world or top class to encompass more players.
I do however remember a world class Vidic, a world class VDS, and a world class Rooney in 09/10, players like those and the others I mentioned change entire seasons and take games by the scruff of the neck all the time.