In a team game the most important player can vary from week to week. It could be the one doing the 1%ers, the one who inspires people most, the one who the club revolves around, the one who gets 2 possessions but shuts down an opposition player, the one who gets the most tackles, the one who puts his head over the ball, the one who supports his team mates the most, the one who is breaking into the team, the one who trains the hardest, the one who you will go to war for.
Sure the question could have been who is our best player? But who is our most important player? Only someone from the team could possibly answer that question./