One of the reasons Arsenal is always having a lot of advantage but is having trouble keeping up with the play is because those who look down on Arsenal are just jealous of Arsenal's performance and all they anticipated from Arsenal is to fail. However, they do not see Arsenal failing. Since Manchester City was fortunate enough to have earned a lot of points from their previous season's play, that season was significantly more favorable for them than it is for Arsenal. And the fact that Arsenal was losing games at the time gave them a significant advantage. That is were it is getting difficult Manchester City and Liverpool been involved the opportunity like last season won't be there again now we have to really work hard to win the title. The games we have ahead we are going to succeed.
This is a more or less even season for Arsenal, without obvious declines, and Liverpool is holding up quite well this season, but this is not a constant state of affairs for these teams, but for City this is normal, they spend every season at a very high level and if this time is very high competition, this does not mean that everything will be the same next season. Klopp will leave Liverpool, the new coach will rebuild the team to suit himself, and Arsenal have a long-standing problem when they go through periods of downturn...
Arsenal is having a pretty good season this season but they don't know yet whether they will survive until the end of the season to continue to challenge for the title of the top three teams. If Arsenal makes mistakes again like last season then they will fail to get it again, while Liverpool and Man City still look consistent. At this time and trying not to be careless, Kloop will leave Liverpool at the end of the season, therefore he will give his best strategy one last time.
Liverpool, manchester city and arsenal are having almost same probability to win the EPL this season but you can take a look at this.

According from the odds for the winner this season and it's same like what i have said above. Liverpool, arsenal and manchester city have slightly different in term of their odds, this is also reflecting their probability to win the copetition but i tell you that if i was never expecting anchester city to lead to be the ost favorite club to win EPL this season again.
Arsenal and liverpool ay be bottling the PL trophy again at the end of season. Things are going so hard for all of the considering the fact that if liverpool was getting bad result. City was only waiting for arsenal and city to get a lost and it can take the lead of EPL.
Liverpool and arsenal are struggled at UCL and they were getting the bad result in UCL unlike manchester city which was able to get pretty good result against real madrid again.
The mentality from the club will determine which team that is gonna win the competition soon.