Ronaldo
Messi
Then take your pick from the next bunch.. suarez/ribbery/ibra etc etc..
Hazard, whilst on his day, and the way he is currently playing, is most definetly world class... but he needs to produce this form for another season or so, until he can be called one of the best around...
(incidentally I think he will do this, and in a year or so we will be looking at one of, if not the best player around (as messi/ronaldo age))