In terms of performance, I think Newcastle's position is definitely better. Their performance in the last matches are comparatively better than the others. That is why if I want to keep Newcastle ahead for the fourth place, there will not be much wrong. But I am sure that many will keep Chelsea ahead in this situation.
I think you're right, because if we are to compare the performance of this three teams I think newcastle is more superior than manchester city and chelsea, because thier previous matches ended with a good score margin than that of manchester city and chelsea who have been struggling to win with at least one goal margin. So if you consider newcastle as the right team to be in the 4th position, I think there's nothing wrong with that. Though they still have tough matches awaiting for them, and thier opponent this weekend is manchester united. And of which you and I know that this match will be a little bit tough for the both teams because manchester united is now recovering from thier form, so who knows what will happen in this match.