No bias from me, as I'm not bothered about United, but I rate him.
On his day, his power, running and vision is awesome.
He may be a bit out of sorts at the moment, but he will be knocking the goals in for them again this season.
Is he world class?
In my opinion he is, and I don't really care that he had an indifferent world cup. The whole England team did, as did a few other players mentioned earlier in this thread who are supposedly better.
I think that sometimes we are a bit giddy when it comes to players from overseas, and overlook our own. If Rooney was playing for Barcelona, was netting over 30 goals in a season for them, and he was Spanish, the thought of him coming to City would be explosive. The transfer forum would be glowing white hot!
He is a wonderful player, and I don't expect to see him in a City shirt anytime, but I would have him here.