Chelsea fan here.
You've all made a fantastic start, but things get tougher come the 2nd half of the season.
Even as early as now I'd say Wigan are as good as relegated being 5 points from safety and having Man Utd, Arsenal, Chelsea and Liverpool all to play next month and then away games to Sunderland, WBA and Stoke and then City to play after that run. I'd estimate they would get no more than 5 points, 9 maximum and is 11-15 points good enough over half way into the season having not played at the Emirates, Anfield, Stamford Bridge, White Hart Lane etc? I'd say no.
That leaves 2 more teams to go down. If QPR invest properly they should be fine. Swansea are tight at the back at home so if they can pick up the odd away win they should also be fine if they get a proper striker in January.
Norwich have probably impressed me the most, they always compete and as long as you do that you have a chance, at Carrow Road it'll be tough for any team to win. They've played at most of the tougher grounds this season so have that monkey off their back.
I feel Stoke (at this rate) will also get dragged into a relegation fight (they could be the Birmingham of last season) so long term it'll be out of Blackburn, QPR, Norwich, Swansea, Wolves and Bolton for those last two spots. Fulham and Sunderland will push up the table soon, they'll be fine IMO