The opinionated one; I think that marks him out.
What's the point of saying things about Rooney from his position in a Championship play-off contender's team? Why would we want to listen to what he thinks about an individual player?
What is "world class" anyway? Does it matter? It's a team game. Individual players can only ever be judged by the strength of the others they play with and against. We can all see that Messi and Ronaldo are exceptional talents (although neither has yet influenced the outcome of a major international competition), but what separates the best of the rest?
Rooney has consistently been one of the best half dozen players in a tough PL for a decade (probably the most influential, along with Lampard, over that prolonged period), he does a lot of the unglamourous work (tackling back, playing out of position) unselfishly, he contributes goals and assists regularly in a struggling team and few, if any, teams would not be interested in having him if he was available. Mourinho may well think Chelsea's chances of winning something this season would be considerably better had he been able to sign Rooney last summer when he tried. His record in the CL is as good as any player outside Barcelona and the current Bayern Munich team.
His record compared to other England players of the last 30 years is favourable, but no England player will ever have any influence at international level until the overall standard of the team is improved so that teams like Spain, Holland, Germany, Brazil and Argentina don't hold such a massive advantage in skills and techical ability.