Pogue Mahone
Closet Gooner.
By my reckoning he's scored 7 (and missed 3?), which means he's still scored at a rate of better than 1 in 2 and he scores or assists at a rate of 0.75 per game compared to Nani's 0.62 which is still a pretty significant difference. That means people think he contributes more to our team's overall play which definitely surprises me.
Let's not forget that this comparison you're doing includes an entire half season which would probably go down as the worst in Rooney's United career, for reasons that had nothing to do with his ability as a footballer.
Compare them in the current season so far and I reckon Rooney would be even more comfortably ahead. A pattern that goes back all the way to Nani's first season with United. Strange that so many people think this pattern will be turned on it's head over the next two years. Don't see it myself.