The blue half of Manchester might currently find itself on the Premier League summit, but I'm not so sure they'll still be there when the snow clears, the dust settles and the spring time arrives in May.
My belief in Sir Alex and his Red Devils has largely been aroused by their recent performance in the 3-3 draw at Chelsea. Despite finding themselves 3-0 down away from home at a ground where they haven't enjoyed the best of results in recent seasons, the defending champions dug deep, Rooney leading the charge with a typically determined display in particular, and rescued perhaps the most precious single point of their entire campaign thus far.
Say what you want about the penalty decisions, but it wouldn't have mattered; Chelsea look utterly toothless under the stewardship of Andre Villas Boas and the way in which their heads dropped in the heat of battle would've left a bitter taste in the mouths of the Blues' faithful. While the likes of David Luiz started to fret and stare down at his suddenly terribly interesting bootlaces, Rooney and co were bombarding their former title rivals with a relentless onslaught to try and salvage something. Not only did they get their deserved point, but on another day they might've taken two more points with them on the coach back to Manchester.
Because they didn't take those two points back up North, it means their noisy neighbours do hold a 2 point advantage over them for the time being. But as Sir Alex's troops look ready, willing, able and up for the battle ahead, Roberto Mancini and his expensive squad are showing signs of discomfort in their lofty position at the top of the table.
Sir Alex remains composed, thorough in his preparation and tactically astute, as sharp as perhaps he's ever been in his illustrious career. Mancini has done a terrific job too, this isn't in doubt, but what is also evident is his recent outbursts towards officials and his struggle to keep the likes of Mario Ballotelli in check.
Speaking of Balotelli, I'm a fan and a believer in his talent. I'll also admit to enjoying hearing about his off-the-pitch antics. But he could also be the individual who costs his boss a winners medal.
If he can't control his behaviour, the recent stamp on Scott Parker the latest in a long line of shameful moments for the youngster, he runs the risk of more needless bans and yet more unwanted attention which distract the team from the task at hand.
It's time for him to stop needing a babysitter and time to start manning up. If he does, his goals would surely help pip United to the title post. Sadly, I don't think he'll manage it this year.
Furthermore, this isn't Fergie's first barbecue. Twelve times previous, he has seen off the competition to land the coveted prize. It is this type of invaluable experience, in the dugout and on the field, that City, for all their millions and talent, are missing. It will come with time, but this year they just don't posses the experience required in order to see out a title race with such intense pressure and the need to dig out crucial points from such a ruthless deficit as their counterparts.
City's quality is not in question either, there's talent in abundance and after years of throwing their riches around, it seems that they finally have the balanced squad that they need. They can settle and bed-in without the need to re-adjust and reshuffle. The money is there should they want to add more megastars, but there isn't a current need for it. But they still don't have the experience needed in order to bring home the trophy.
They may not be getting any younger, but the likes of Paul Scholes and Ryan Giggs would be perfect for City.
Their experience combined with the young, talented legs around them would be like finding the last two pieces of a complicated jigsaw puzzle. United don't have as much pace as their rivals, but they still have talent in abundance. In the case of Rooney, not only does he still have youth on his side but also the experience of such tight fights to the finish that will be absolutely vital to United's success this year.
It's a tough ask, but my money's on Sir Alex. The future is incredibly bright for City and a League title amongst a string of other honours is tantalisingly close, and I have no doubt that over the course of the next decade that they'll be an incredibly dominant force across not just English football, but the world.
Just not this year.
As for United, several questions will need to be answered in the summer as the defence and midfield will almost certainly need a new burst of life. But for now, they still have the tools required to pull off the job and add yet another league title to their collection.