It's between Chelsea, United and Liverpool. I think Liverpool will run out of steam come February/March (they often seem to) and then it will be a straight race between United and Chelsea. That's where it becomes more difficult, but I'm gonna go with United, largely because their games against the rest of the top 4 are all at home in the second half of the season.
I agree with chingy. Man U and Chelsea will be breathing down their necks for the rest of the season, but eventually I think Man Utd will pull it off...unfortunately.
United always have an easy end schedule. We always have a hard schedule the whole year, its bullshit.
I've always fancied Chelsea to win it, but there home form isn't good enough, So i think Man Utd will do it. However much it pains me Aston Villa aren't far off.