with Arsenal's good performance this can make them at the top of the rankings, but the points they have are still not safe, Manchester City is still a threat to Aarsenal, because with their narrow points difference it could allow Manchester City to overtake their points and returned to its top ranking. Also I think with Manchester City's next match that will take place I think they can still catch up with their points which are slightly different from Arsenal so there is a possibility that Manchester City can overtake Arsenal.
Of course, Manchester City's performance cannot be underestimated, Arsenal must be prepared for their ranking which might be shifted by Manchester City, which is performing well.
Performance of Manchester City and Arsenal are different but these teams will accomplish their mapping goals for each season. Arsenal are actively in the competition and winning their opposition without panic ought to be bravery act for the team. Gunners will continue pushing for excellent results because winning us stable and straight for them, Mikel Arteta will always be on the line to withstand the pressure coming on his way.