Goals came at regular intervals during a one-sided encounter as United kept the pressure on current leaders Chelsea.
After the match, the veteran Scot said: "It was an excellent performance, I'm very pleased. On Sunday and again tonight, Wayne (Rooney) was absolutely fantastic. The energy he shows and his desire to win is marvellous.
"I was also pleased to see (Antonio) Valencia get another goal for us, that is really key. And he'll get more goals for us.
"It was also brilliant seeing Rafael celebrate his goal by running over to his brother. They love playing football and it's terrific to see that enthusiasm. It's an under-estimated quality at times. But those two boys are a pair of aces.
"But on this particular night the whole team played well. I don't really want to pick individuals out at this important part of the season because every man has to play his part, and they all did tonight.
"I think the first-half performance in particular was one of the best of the season. There was fluid movement, a good tempo and we created a lot of chances.
"But I thought we kept the momentum going for the whole night, and we recognised that it was an opportunity to get goals. Goal difference, you never know, could be important come the end of the season."
Source: DSG
