While Arsenal have been grabbing the headlines for a finely-tuned approach, United have also been going about their own game with a certain panache - smashing four goals in each of the last four matches before Saturday.
"Arsenal kept the ball and had a lot of possession, but they were never really threatening. Football is about scoring goals and winning games," said Hargreaves, now fit again following a niggling knee problem.
"I do not think they had a clear-cut chance created in the first half, apart from the header by Gallas, and that was a set piece.
"Defensively, we did a good job and tried to control their so-called beautiful football."
Hargreaves added: "They keep the ball and try to play that way, but when a team is as good defensively as ours, you can keep them at bay because we played very tight together.
"You do not get to the top by conceding a lot of goals, but it is difficult when there is so much offensive power on the pitch.
"When you win the ball back against a team like Arsenal, who take a lot of risks going forwards, is vital that you attack.
"We have a lot of quality going forwards to catch them.
"Both of our goals were from really beautiful pieces of play and theirs were a bit more scrappy."