Ferguson also spoke of his admiration for Michu.
He told Inside United: "Swansea have been terrific.
"The boy Michu has been a revelation. To sign him for just £2million and get 20 goals out of him - what a bargain!
"I wouldn't say Swansea have been the surprise package but they've really lifted their performances. They were a newly-promoted side last year and managed to survive in the top flight. This season, they've kicked on to another level and become a good middle-to-top side.
"They also won the League Cup of course and they play really good football. I'd say they're the team of the year with Michu a real bargain buy."