I agree Chelsea always surprises big clubs lately and with them you cannot never know. But to be at the very top you need to win against underdogs always thats how you are at very top. The league is won on small games not on big games. Chelsea is improving each match so i dont know what to bet on them honestly
If Newcastle was doing good as the previous season, I would say that they are the favourite ones definitely. Unfortunately this isn't the case right now. They are fluctuating from a match to another and the difference between them and Chelsea isn't that big. Even their odds according to bookies are the same. I don't know this could be considered as a good thing or not since Newcastle are playing home so normally their odds should be better.
I can't decide which team to support but I guess a draw is likely to happen unless a red card or an awful performance was shown by one of them.