How can you compare a right winger with a centre-forward? Or a centre-half with a left winger? Or a Goalkeeper with right-back?
"World-class" is a term that has been cheapened by fadsters like yourself, gouging on a diet of Sky Sport marketing Stoke v West Brom as a must-watch game. For me, "World-class" is a more important accolade than the one you would dish out to all and sundry. There can't be more than 30 world-class players in the world, otherwise it becomes silly and pointless. A bit like you.