Horses for courses.
If we want to press the opposition with added quality possession, then Lucas-Allen-Henderson.
If we want to sit deep and hit teams in the spaces behind their defence, then Gerrard-Coutinho-Henderson
If we know that the other team will park the bus, and we need to hold the ball, switch play, probe intelligently and create chances from set pieces, then probably Lucas-Gerrard-Coutinho.