I wouldn't swap him for any player in his position in the world. He is young aswell and is only going to get better. I was at a match recently and I watched him off the ball and the running and chasing he does is immense. He does all the ugly work.
He shouldn't be in anyone's Fantasy Football team because he is never going to get any bonus points for little flicks or any type of flair but in the real football world he is perfect for the structure of the team and without him we wouldn't be as good. Simple as that.
He gives me the impression he would die for the team or kill his own mother just to get 3 points, if the likes of Babel had his attitude we would be top of the table not second