I'm gonna go against the grain here and say he is actually somewhat overrated after his first season which was otherworldly and for the ages.
He takes penalties (when Milner not on the field), has the least defensive responsibilities, of the front 3 he is the player the offense is more geared towards which you see when he's moved centrally late in games and hangs out by the midfield line for the counter. He can be as infuriating to watch as any player with his desire to dribble past 10 players in the box when someone else is in a better position. Has made some fantastic passes but in general he is not a good passer compared to others.
I think he'd be the least missed of the front 3, especially if Bobby could find his finishing boots.