I think Chelsea have tried to bed in too many players. They lack balance in terms of being short on quality up front and vulnerable at the back. Hazrad and Oscar have struggled on heavier pitches and closer attention. The supporters angst over the manager certainly wont help either. I think they will nail 3rd and proabably strengthen in January up front. I think Chelsea will regroup next summer and be a bigger threat next year.
I think City and United have the most settled squads and coaching staffs. I hope it comes down to the best side wins and not some daft ref decision or multiple injuries.