Not sure about that.
King is in the top 5 players in his position in the world where as none of the others are.
I think Bale will be at that level with a bit more time and I think Mods, VDV and Ade are about the same level and are unlikely to really improve much more. VDV is class, have no doubts, he is just playing in a team that relies very heavily on him. If he was able to stay further forward and still get the ball he would score even more goals but would also create. As it is, he drops deep because he never gets the bloody ball.
I would put Modric in the top 5 CM in the world without a doubt.