The England striker has scored 20 goals in 28 games this season and his manager is convinced that no forward in the country can currently match his number 10.
Ferguson claims Rooney is highly likely to break the 30-goal barrier this season and he is "happy" with the player's form.
"The main reason he is scoring more goals is because he is in the right place at the right time. That's what goalscorers do," said the Scotsman.
"Wayne has become more aware of the penalty box, too. Playing him in that direct role gives him an appetite."
Chelsea manager Carlo Ancelotti recently claimed that Manchester United would be a completely different team without Rooney, and the The Blues' gaffer added the England striker is carrying his side.
United travel to rivals Arsenal on Sunday knowing the result could have a huge impact on their Premier League title odds.
The Red Devils are 19/10 to win at The Emirates this Sunday.
Rooney is certainly on fire for United at the moment, and is priced at 6/1 to be the outright first goalscorer on Sunday.
However their defence has looked leaky in recent weeks and punters may see this and home advantage as the reason why an Arsenal win at 7/5 might represent the value bet.
However, given that neither side will want to lose, the tip of the weekend is the 1-1 draw which is currently at 11/2 in the football betting.
My Tip Of The Weekend:
A 1-1 draw priced @ 11/2 with Betfred - Sunday 31st January, kick-off at 4pm, live on Sky.
By Drew Swainston
(Guest writer from Betfred on behalf of Beer Footy and Birds!)