Conclusion
What the stats tell us is that both players are key to their side’s attacking play, but in totally different ways. Hazard’s dribbling ability is part of Chelsea’s overall strategy, so he affects the game throughout, constantly stretching the opponent and creating space for others. Sanchez on the other hand is less consistent, loses the ball more often and gets beaten more often, but he makes the difference when it matters, scoring the goals even when the rest of his side lets him down.
Sanchez wins for the strength of his contribution to individual games, but Hazard contributes more to the success of his side.