Your analysis cannot be argued because that is how it looks, Both Chelsea, arsenal and Liverpool are currently in their best performance which I equally agree with you in their victory. Man City vs Man United is going to be a very tough match because both of them are recovering from their inconsistency, this match will be very difficult to predict because both coaches have to prove themselves to their club especially Manchester United who are finding it difficult to locate their consistency, they narrowly escape in their last match against Burnley which they hosted. If they can find it difficult to secure victory at home against bottom team like Burnley, what do we expect when they are play an away against top team like Manchester City?