Contrast West Ham and Wigan with Sunderland. Sunderland are going down, no doubt and they are doing so because you cannot stay in the Premiership by spending no money. West Ham brought in Benayoun (what a player he is turning out to be), Danny Gabbidon, Roy Carroll (whose had a good season so far, suprisingly to me) and Konchesky, who should be in the England squad over playing Carragher as a left back as, well, he's left footed for a start.
Wigan have brought in players too. Sunderland have brought in nobody, showing a complete lack of ambition; Mick McCarthy isn't Premiership quality as a Manager in my opinion.
Liverpool are doing shockingly; Rafa Benitez has bought crap IMO - maybe players that are suited to European football but lack the fight, tenacity and guts in the Premiership and right now, I don't see them finishing anywhere near a CL spot.
Man United have a team with bags of talent but they really lack cohesion and understanding at the moment. I don't think Rooney and Van Nilsterooy work that well together and Ronaldo, whilst not roasting French birds, is lacking in most games at the moment. They also have central midfield issues. Scholes is playing like an absolute muppet and without Roy Keane a la 5 years ago, they lack bite and ball winning power.
Spurs are suprisingly good this season. They seem to have a decent manager and have bought well - lots of young English players throughout the team who have the desire and tenacity to want to win matches. King, Carrick and Defoe have been outstanding this season.
Arsenal have sucked so far - without Henry they are toothless in attack and have NO PLAN B! Not much width and if the passing game doesn't work, they just can't break teams down. Lots of work for Wenger to do in the January transfer window IMO.
However, no one is going to catch Chelsea. They have a World Class XI backed up with another World Class XI. Money talks I'm afraid.