chelsea are the biggest threat to united if they get all their injured players back.
liverpool will be rubbish when they lose Alonso and maybe even Masc. too.
Man City wont hit good form until after xmas, takes players a while to gel together and they havent got top quality players to win the ball and supply their strikers (yet)
Arsenal will be lucky to get a CL spot.
United and Celsea 1st and 2nd. Hopefully united first, but im not too sure