I thought this was an interesting Copy and paste from the telegraph. Long but worth it. Enjoy.
Premier League title race: where it will be won and lost
By Nick Pearce – The Telegraph
MANCHESTER UNITED
Strengths: The crucial point is that Manchester United have been there and done it. The core of this team know how to navigate title run-ins and they are yet to lose a game this term. Old Trafford has regained 'fortress' status too, which will be crucial when Manchester City and Chelsea come to town.
Weaknesses: At home United may be a cocksure force of nature, but on the road it's a different story. Sir Alex Ferguson's side have managed just one away win - the same as Fulham. Three tricky visits to the capital could be their undoing, a situation not helped by Wayne Rooney's dearth of form and goals.
ARSENAL
Strengths: When Arsenal are in that mood, they can be too hot to handle. And at times that's been the case, with the Gunners scoring 39 goals, at a rate of two a game. Arsene Wenger's side have also gone some way to shaking off their 'flaky' tag, especially away from the Emirates, by manning up and winning, when historically they would crumble.
Weaknesses: Just too many dropped points that have stemmed from the concession of too many sloppy goals. Arsenal have only kept four clean sheets this term and have a shaky core that fails to fill even the most ardent of supporter with confidence. Marouane Chamakh began the season well but has failed to match Dimitar Berbatov and Carlos Tevez for goals.
CHELSEA
Strengths: The Blues have big names aplenty, who when they shake off the rust and malaise, should fire them up the league. In spite of their recent poor form Chelsea have still conceded the fewest goals in the division. So, take a handful of big name players add a stingy defence and in theory you should have a title contending team.
Weaknesses: When they're bad, they're really bad. The performances in defeats to Liverpool, Sunderland and Birmingham showed a side absolutely devoid of spirit and quality and a spanking by local rivals Arsenal has done little to raise spirits. Chelsea's problem is they're in a rut. Can they get out, or is it terminal? The next month could be crucial.